The wedding took some of Sherlock's energy out of him, making the best man speech, and seeing who the killer was in John wedding.
But he just wanted to leave early since there was nothing for him in the wedding; it was just seeing John and Mary happy that they were together and finding out that they were going to have a child.
Before Sherlock can sulk in his chair in his favorite blue night gown, while shooting bullets into the wall he can hear his phone going off.
"This is Sherlock Holmes, please call back later I am too busy shooting my wall with a pistol, or in my mind palace with nicotine patches, please call back"
Before he could hang up, a familiar voice came up "you better not do any of those fucking things, Mrs. Hudson will put that on the rent like last time"
"Oh hello John, how's the honeymoon"
"ok first of all, we are not on our honeymoon due to the fact I found out my wife is pregnant, and second of all, did you not check your caller ID or something?"
"No I took it off after you left, I didn't need it, and I thought it was Mycroft calling to see if I have any leftover cake from the wedding"
There was a silent chuckle on the other line for a few minutes till John spoke up "well any way, I am going out shopping a bit for you and when I come to the flat I don't want to see you shooting holes into the fucking wall again"
"I can't make any promises" Sherlock replied before he hung up.
After John looked at his phone he turned to Mary "Mary, I'll be out for a bit, is there anything you want?"
She shook her head "no I'm good right now" before John can leave Mary spoke up again "John didn't you see Sherlock leave early at the wedding, maybe you can ask him why"
John thought for a second and remembered he was looking for him during the wedding "your right I'll ask him, and you relax while I'm gone" she gave him a thumbs up but before going back to watching crap telly.
Later at the flat
As John made his way up the stars he heard gunshot firing "oh hell no, not again"
John opened the door to see Sherlock shooting again "for god's sake Sherlock, I ask you not to shot again" he grabbed the gun out of Sherlock's hands and took out the bullets.
"Hello John it's nice to see you"
"Nice to see you and the new holes in the wall" he said placing down the groceries "want me to make you a cup of tea for you while I'm here?" Sherlock nodded
As John was setting down the kettle and spoke up "Sherlock, Mary told me you left the wedding early, is everything all right?"
"Of course John, I am all right" he snapped back really fast "ok Mr. grumpy" he said coming in with the tea and setting it down next to Sherlock.
John look at Sherlock to see he had his knees were up to his face hiding it "Sherlock are you alright, you don't do this normally?"
"I'm fine John" he muffled out
John put his hands to his hips "ok Spock, don't tell me, but I will stay here till you tell me"
John walked to his chair and sat down and called up Mary saying that he is going to stay the night because Sherlock is not being his self. John got up to grab him self some tea till he heard Sherlock muffle out something.
"I'm sorry Sherlock what did you say?" he heard another muffle, John put a hand to his ear "I'm sorry say that one more time"
Sherlock moved up his head up and shouted "MARY!" before putting his head down again.
John looked confused "what about Mary?"
Sherlock did another muffle but it was clear "because" John's eyebrow rose up "because what?"
Sherlock sighed "because I don't know if I can trust her right now and…I'm jealous"
John was in surprised, Sherlock Holmes, jealous? John got down on his knees and got in Sherlock's face "what kind of jealous?"
"There's only one kind of fucking jealous I have for you John"
"And what is that?" Sherlock got out of his position and whispered in John's ear "love" John's eyes widen with surprise and shock.
"But you deleted your feelings?"
"I know, but every time I see you, my feeling come back to you" John seemed surprised that Sherlock's feelings come back to him every time he sees John.
"So you're saying you're jealous of Mary and your confusing to me that you love me" Sherlock nodded "I love you John Watson" end of chapter 1
I decided to make this story into chapters hope you enjoy