Thank you Trippin2.0 as much as it probably shouldn't have, your suggestions did make me laugh. And some small part of me is sorely tempted but mostly too exhausted.
I'm a little ashamed it took this thread to realize I'm unhappy. I think somewhere I knew that but every time I tried to express that to certain family members (and really you'd think I've learned by now) they'd tell me it's normal. Give it time. It'll pass. LOL you're so funny.
So I was resigning myself to it.
Thank you for the long post LookingforCalm. It definitely hit some tender areas very bluntly but I needed to hear it. Thank you and I'm so sorry for what you've been through.
I don't think my gut and I are on speaking terms.

This isn't the first time I've suddenly found myself in a relationship like this and wondering how I got here. I should have known better. I should have seen it.
I have a therapy appointment this week. I'll bring it up there. See if they can offer any kind of structure or guidance for how to mitigate the fallout and then start forming a plan 'b' as far as co-habiting through our lease or figuring out somewhere else to go.
Again, thank you all very much for helping me face a truth I wasn't willing to see.