Did your feelings change towards SO

Well it sounds like you have every reason to feel the way you do and I think you'd be just fine without him. It sounds like you are supporting the household now so it would likely be cheaper to do it on your own. The sending numbers and nudes, no girl you don't want to put up with that.

he doesn't help at all, with household chores or our daughter, he doesn't spend time with her, maybe 10 minutes a day. he also goes out drinking 3-4 times a week, so due to our financial situation (because of his "habits") I had to go back to work. now he expects me to pay for everything (apart from rent) and gets mad if I use our joint account to buy stuff like groceries or diapers. I feel like a single mom because even when he is home he'll just sit on the couch either on his phone or watching TV, he says he works hard and deserves to have time for himself, yet I don't? it's emotionally exhausting when I seem to be the only adult in the house now. (both our tax returns came in and we had a budget/plan for both of us but he spent $300 on a night out and came home at 7am, and I bought our daughter her new car seat and still have money to spare). I've also caught him on dating websites flirting and sending his number out along with nudes. he says he's done with all his immature shit but DD is now 7 months and nothing seems to have changed despite my best efforts to talk to him. he constantly guilts me into to staying and I feel like I'm not financially or emotionally stable enough to leave, it feels like he's beaten my self-esteem down so much that I'm willing to settle..... I know this is quite the novel and I apologize..