She didn't think she'd be back let alone divorced and with a kid his kid. Hermione should have realized that Ron was going to do this it happened when they were here at school together so it was bound to happen later on after the war and after they married. She was spending too much time not doing what he wanted, instead she spent her time looking for a career and going to school living under the strains of an apprenticeship while taking care of the one child they had together. He wanted a stay at home wife and mother like Molly and that wasn't Hermione's dream but her wants weren't important to him only his. Well he was getting what he wanted now he used Lavender to get back at her just like he'd done back in fifth year so she took Rose filed for divorce and left him. Now she was back to take over for McGonagall who was taking on her full duties as Headmistress this year.
Granted she wasn't looking forward to working on a professional level with the man whose life she saved at the end of the war and who had done nothing but treat he like she was a snotty brainy little twat for all of the years she went to school but it was better than living with Ronald anymore. Severus Snape may be a complete and total asshole but he at least had modesty and a touch of sensibility unlike her ex-husband and they'd only have to see each other at meal times and during patrol at night other than that no interaction was needed.
"Ah Miss Granger welcome back we're glad you decided to take the position your husband had informed me that you wouldn't be able to do so with Rose and everything." Minerva said as she met Hermione in the entrance hall, it was two weeks before the students were due to arrive at the school.
"Ex Minerva my ex-husband and Rose is not a concern in the equation she's here with me as you can see." Hermione replied in a soft vice with a firm tone, the way the professor in front of her used to do when correcting or disciplining her students in class.
Minerva looked flabbergasted at the news as far as she had known the duo were still happily married, especially when she had talked to Ronald three weeks ago, apparently a lot could happen in three weeks. Then it was strange that Ron would say that Hermione couldn't take the position that she was apprenticing under with her because of little Rosie when the apprenticeship didn't get in the way. "You and Mister Weasley split up?" Hermione just nodded. "Walk with me dear I'll show you to your new quarters, now explain to me what happened."
Hermione followed but wouldn't say a word as to what happened she was still so upset over what happened. "I'll tell you what happened Auntie Minnie, I may be young but I'm smart for my age and I'll be starting this year anyway." Rose piped up from next to her mom.
Minerva nodded to the small eleven year old girl so much like her mother it was uncanny. "Well you see daddy wanted mommy to stay at home rather than find work something she wanted to do, something like Grandma Molly is what he was looking for from mom, a lot of kids and a stay at home wife to care for them all while he was off working at the Ministry. And well you see I suppose he figured mum was defying his wishes apprenticing here with you and looking into a career no matter how close to home and it may or may not have miffed him a smidge. So to get back at mommy he cheated on her with Miss Lavender, I believe you know this has happened once before at this very school when they were both learning under your tutelage. This prompted a fight and in the aftermath mum filed for divorce, which surprisingly went rather smoothly, gained custody of me and accepted the job offer her which is something she wanted the most." Well articulated if Minerva had any opinion of how the young child said what she did, albeit in a rather know-it-all kind of way, just like her mother again. However what got her the most was the reason Hermione had left. If it were her she would have punched the sod in the groin told him he wasn't worth her bloody time and then left him.
"Well then I commend you for leaving him Hermione" she said stopping in front of a portrait of two lovers in a meadow having a picnic with a unicorn. "Seems rather inappropriate a portrait now, but it's the one your stuck with I'm sorry Hermione dear."
"It's alright Minerva, I suppose I'll see you at dinner travel took a while we did come by train and I'm a bit tired," Hermione said hugging her former teacher. Minerva merely nodded understanding what her student must be going through.
"Mommy I'm not tired can I just help you unpack and then go to the library?" Rose asked Hermione after McGonagall left them to their own devices.
Hermione looked at her daughter so much like her but with eyes as blue as her fathers, almost like harry with his parents. "It's alright dear you go ahead to the library I'm sure while I nap the house elves will take care of all the bags. Have fun sweetie but please don't bother any of the professors while you're about the castle." Rosie nodded before speeding out to the library.
Severus walked into the library to search for a new book to read, he'd read nearly all of the non fiction and most of the fiction and already gone through his own private library more than three times over so there was nothing to do but tote himself to the only other library he had unlimited access to. Walking by the restricted section he passed by the favorite table of his savior and the brains of the Golden trio only to find a bushy head of hair leaning over a book at that very table. "Miss Granger I wasn't aware that you were still working so hard on your apprenticeship of Minerva with your husband telling us that you would no sooner be looking for work in the area of your choice than facing another dementor."
The eyes that looked back up him belonged to a smaller and more childish face than that of his former student and instead of being the beautiful, he did not just think that, chocolate brown that he was expecting they were a vibrant Weasley blue, it was the offspring of his former student. Here in the Hogwarts library three weeks before she was even due to arrive at the school. Why, why was she here and where was her know-it-all mother, the lovely, he did not just think that, bane of his existence and the reason he still had one? "Oh you thought I was mama that happens to me a lot, no, no she's at the rooms sleeping she was rather tired after the trip. No I'm Rose, I can go get mama if you want but I rather think she needs the sleep what with the divorce and everything, oops, I do believe I've said too much, well if you'll excuse me professor." Rose grabbed her things and rushed off leaving the confused and slightly happy Snape in her wake.