<human>: Can you give me a shortened version of the text?

I made an account to post this. Help me guys.. Please. I apologize if this comes out all jumbled up. I'm typing it out on my phone. 

My (24F) boyfriend (30M) has two children, a boy (5) and a girl (3), from his previous marriage. We have been together for a year and a half now. This is by far the happiest relationship I've ever been in. I think I've grown new dimples from smiling so much. 

He has partial custody of his kids because he's deployed most of the time. I love his kids like they're my own. I can barely make it through the first couple of seconds before I tear up watching his son play baseball and when his daughter insist that I brush her hair instead of him. However, I sometimes lay my head down and cry because I can't help but wish I was the mother of his first borns. There's a video of him and his ex-wife holding his son, and his son laughs for the first time. It's the most innocent little laugh you can imagine. I can't help but wish with every bone in me that I could be the one in that video right next to him. 

Maybe we'll have our own children in the future but I'm worried it won't feel the same for him. I guess I'm a lot more emotional than I thought I was. I know this may all sound crazy but I just needed someone to tell how I feel..
<bot>: I wish I was the mother of my boyfriend's children from a previous marriage and am worried he won't feel as excited for our own future children.