Relationships are different among various cultures. Men marry and divorce based on circumstances and the fickleness of their love. Elves are considered married just with physical intimacy, they have courting from what outsiders understand but they don't have ceremonies for love, to them it's just natural. They will only be with one person, unless that person dies, then they may chose another but it has to be actual death, they never remarry if their partner sails West to the Undying Lands. Dwarves are very chosey with who they court and marry, since they have less dams than dwarrow, they always allow the dams to rule the courtship. However, there is sometimes partnerships between dwarrow, they never officially marry because they cannot have children but it is not considered taboo at all. If a dams husband dies, sometimes she'll remarry, and sometimes she will not, it's always her choice.
Dis had lost her husband Hadli a month ago in a mining cave in, 3 other dwarrow had died with him, but he was the only one who had been married. The whole community was still upset about it. She was still in deep mourning, and her grandfather was preaching at her with a strange wizard named Saruman to get married, to an elf! She wouldn't even want to marry a dwarf right now with how she felt but she would certainly never want to marry an elf. Her father Thrain was on her side and was trying to talk Thror out of the foolish scheme. Her brothers Thorin and Frerin were not aware of what was going on, Thror and Saruman advised against telling anyone for now. However, either way her grandfather, father, son, Saruman and her were still on their way to Rivendell regardless, to meet with the elf that her grandfather and Saruman wanted her to marry. He apparently lost his wife nine days ago, and his family feared that he may be close to fading from a broken heart. He didn't have any children, but his wife had been 3 months pregnant when she had been attacked by orcs on the road. Saruman kept talking to Thrain and Thror, at times his voice seemed to have a different quality to it, but in her mourning she didn't really care. She just held Fili close and thought of times gone by, times with Hadli.
Thror and his counsel were talking of trying to take back Khazad-dûm, Thror wanted more children in their bloodline should things not work out, and neither Thorin or Frerin had woken up to anyone yet. Their company finally arrived at Rivendell and things went incredibly quickly in Dis's eyes from there. Saruman, Lord Elrond, and Thror got everything set up for her to be married to Elladan, an elf who unlike every other elf she'd seen so far seemed to be almost made from stone. He didn't have any facial expressions, he didn't move unless told to, it was almost as if he was sleep walking through life. They did have a dwarvish ceremony for the wedding, both Thror and Thrain insisted on it. After that the wedding night was a blur, she was married to an elf and to someone who seemed like a ghost already. Thror and Thrain left to get ready for their attack on Khazad-dûm, while she stayed in Rivendell.
Nothing felt right anymore, the man she married barely moved, his brother seemed far to interested in her son, teaching him all sorts of things that Hadli should have gotten the chance to teach him. It was almost as though Elrohir was acting as a surragate father to Fili and it was not making her happy in the least. She did see Elladan smile a few times at Fili's antics, they were short lived but at least she knew it was possible.
Time passed, seemingly slow and fast at the same time. Minutes seemed to drag by and yet months passed faster than they had in her recent memory. She received word by raven that the planned attack on Khazad-dûm had been devastating. Hundreds of dwarves were killed and yet the ones that hit her the hardest were her brother Frerin, her grandfather Thror and her father Thrain was missing, his mind having broken after seeing his father killed. Thorin was the one who sent her the message, she wasn't entirely sure how the raven found her, but she at least knew that someone of her family was still alive. She had hit her own breaking point, she couldn't stay in Rivendell any longer, almost all of her family was gone and she wanted to go home to Thorin. The elves had not been unkind to her, however she had never been accepted, granted she hadn't really gone out of her way to try to be nice, but it was far too strange to stay here.
She spoke to Elrond, Elrohir, and Elladan, telling them she was leaving, she showed them the letter she received. She said with all of the loss and the fact that she and Elladan didn't love each other, she didn't want to stay here any longer, she also didn't think she was having any type of affect on Elladan one way or another. They seemed to understand, they didn't like it but they understood. She traveled back to Ered Luin and her brother met her there close to a month later, they cried in each others arms for close to an hour.
She sent a message by raven the day after Thorin came home, to Elrond, Elladan, and Elrohir, she kept it brief. "I'm pregnant, I thought you should know, meet me at the base of the mountain in two weeks time on the 27th, near the split rock trail. -Dis".
Authors note: 1) I don't own anything that is recognizable and I am not making money off of this. 2) Part of the idea for this story came from the story "Stolen Heir" by Kaotic312, however there will be some major differences. If you haven't read that story, I highly recommend it.