@Travis19,
You've got a ton of things going on, all at the same time.
One thing I noticed in your post is that the only hint that you're gay (or bi, or believe you might be) is the title of this topic. Otherwise, everything is about your past, your ex, and your daughter.
What that's telling me is that you're somewhat confused over your sexuality, beyond everything else.
But let's start with your ex. The following are
not good reasons to remain in a relationship with someone:
- You don't want your child to watch a divorce (this doesn't mean that people shouldn't try if there are children involved – I personally happen to think that they should. But if that's the sole reason to be together, it is not a good enough reason
- You have no place else to live
- You have issues, past or present, with your family
- You think you owe your ex for past positive deeds (a nice sentiment, and it certainly means you owe friendship and good will, and possibly even money. But a relationship? No, you don't owe a relationship to someone who's been kind to you)
- You're confused about your sexuality and have decided you may have made a mistake (because you might be confused again tomorrow, or next week, or whatever, if you get back together, and want to go back the other way)
I highly suspect you're bi. And of course you can have a fulfilling, wonderful life, and you can have a relationship where you are exclusive and faithful if this is what the parties agree to. But it does not have to be with your ex.
Your daughter, I might add, is probably far more resilient than you think she is. Better that her two parents are on the same page for raising her, and are not together if it's not working out, than to have them fighting and miserable for the mistaken idea that clinging to misery is somehow good for her.