life troubles

So a few months ago I started a new job. And at this job, I met the man I know I want to get married to. It's funny cause one of my friends there said on my first day, "who knows you may meet the man of your dreams here." And I did. Over time we've become so increadibly close and I feel in love with him in .5 seconds. But the trouble comes in. He has a little baby and this baby is like my life. I'd do anything for it and it isn't even mine. I've become way to attached to these 2. So obviously there's the baby mama. He and the baby mama have been broken up but just this past week the baby choked and was rushed to the ER and it scared him cause he lost his first child and he was afraid he was going to lose this baby. So the baby mama found me on Facebook and messaged me and started threatening me for all of these awful things that weren't true. Mind you he and the baby mama have been broken up for some time now. So he and I have been basically dating, sleeping together, etc. So she found out about him and I and basically shit just hit the fan. She went into his phone account online and blocked my phone number, Facebook, Snapchat and Instagram. My heart was and is so broken. I haven't been able to eat or sleep and I NEVER EVER miss a meal. Ever. Both of us are depressed as hell. He can't eat or sleep either. Everyone at work knows and wants us to be together. But the issue is the baby mama is giving him an ultamadium. She's like you either be with me or you can't see your kid. He went to a lawyer but unfortunately the state we live in is a "mother state" where the mom gets most of the custody and he'd only be able to see the kid every other weekend and that devastated him. He wants to see his kid as much as possible. So it's not fair. I'm 99% sure he has the same feelings for me as I do for him. It's just a really sticky situation and I really don't know what to do. I want to be with him so damn bad. Honestly if he proposed to me this very second, I would say yes. And I told him that and his face just smiled and so did his eyes. I honestly would give up my "wild 20s" to have a little family with him. I just don't know what to do. Help me please. I can't keep living like this. I need him so much it physically hurts me. I hurt so much. I've never felt like this before. You know when they say when you know you know? Well I just know with him. I just know it.