You need to save your boyfriend and leave him …having a child with a kid is a big responsibility and you gotta take in that you will be a step parent … my 3 year old crawls into bed with me and my s.o all the time .. I don’t mind it although ti does drive us nuts at times we know it won’t be forever … if you were biologically her parent you would definitely take in those moments she’s tiny… also buying her stuff that’s his daughter he doesn’t have her full time so he gets to be the fun parent .. it’s aloud .. I usually give in and buy my child stuff at the store cause I know it makes her happy but I also teach her great full ness … terrible twos welcome .. 3 is worse ..they scream they wine they hit they bite they throw things they don’t know how to communicate properly… she’s a child that’s up to him how he deals with it … my child is a lot … the newborn and baby stage is the easiest .. but you seem like you aren’t ready to be a step parent or be with someone that isn’t on the same level as you. Find someone without children and wait to have your own with them . It’s hard doing it with children if I was single and didn’t have kids I definitely would cross of dating anyone with kids .. my bestfriend does it and I think she’s batshit for even wanting to do it cause jealousy through baby mama comes with it and so does a full responsibility of a child. I personally couldn’t do it in your shoes … I hope you can find and even ground or if not save yourself from investing anything further . If you don’t wanna deal with it it’s not your job to deal with .