<human>: Give me the gist of the text in a nutshell

Hey guys, I know the title makes me sound petty but please hear me out. I have been with my boyfriend jack (26m) for 8 years. We have 4 kids together, a house, and dogs. He works 90 hours a week and I'm a stay at home mom, also I'm pregnant with our fifth child. My brother just proposed to his girlfriend of 2.5 years; they both just graduated grad school and just got their lives on track. 

I am angry and sad because jack will not propose to me. He doesn't believe in marriage (due to his parents being divorced), and says that what we have is enough. He says he's not ready and we are not financially stable (he makes $9 an hour), and just gives me excuses every time I bring it up. I guess technically we are married, but I'm dying for the ring and the piece of paper saying we are committed for life. My mom is beginning to hate him and accuses him of leading me on, and it's really starting to get to me. I love babies and want to keep having more children, but it would feel weird having 5+ kids with just a boyfriend. 

Anyway, my brother and his girlfriend are great together. She is really nice and has been a great influence on my brother, which is why I'm not angry at him or her. But I have to admit, having him call me and happily tell me that "she said yes" pissed me off so much. On one hand, I'm happy, and on the other, I'm furious because jack has not proposed. I mean, my brother and his girlfriend haven't even been together that long! Why her and not me? She has this beautiful ring on her finger and gets to plan a wedding, while I just sit at home waiting for jack to get home while I take care of my kids. 

What do I do here? I know she's going to ask me to be a bridesmaid and it's killing me to think about their wedding, which should be mine. I'm being petty and crazy, what can I do to stop these feelings? PLEASE HELP.
<bot>: brother and his girlfriend of almost 3 years just got engaged, I am jealous because my boyfriend of 8 years who I have 5 kids with does not want to get married.