Baby moms vs GF

Allanna
So I'm a mom and I'm dating somebody with a child .. Soooo I have question I need advice I need opinions I need something here .. So my boyfriend and I been friends FOREVER since I was 5  we decided a few months ago to make it official .. He was there when my son was born and I was there when his son was born .. He made me the god mother of his child . Now his baby momma OMG she's really really really ignorant stupid and dumb for a better lack of words .. She told him he couldn't see his baby due to the fact that he doesn't know people 😂😂😭 now idk about y'all but it's stupid .  But so I buy my god son everything clothes and all types of baby shit so the other week I got him diapers and stuff and wipes and thing about 208 diapers 808 wipes and some baby milk for this baby because she says he doesn't do anything for the baby mind you she had her bd  text him saying he doesn't have a son any more that's his son now this this that and the third really disrespectful stuff so the day we were supposed to go pick him up she says and she changes her mind and says oh noooo you can't come get him you don't do enough for you child but she wasn't aware about the thing we just bought the baby so .. I told my boyfriend ya know Bae lets just go drop it off anyway . So she wasn't home so we went to her grandparents house I don't like this girl I don't like her family but ya know I have to deal SO while my boyfriend is passing her grandpa the baby stuff I literally got out the car and handed him a box and got in the car she text him saying some really disrespectful stuff a couple days later literally breaking my boyfriend down making him cry so as he walked away from the conversation I told her ya know I'm not disrespecting you but I'll be damned if you knock him for his efforts for seeing his son that you stop and I'll be damned if I watch you belittle a grown ass man and he's mine when y'all can sit down and talk like parents then it can happen but all this making him cry not gone happen on my watch so a couple of days later she text him and told him oh your girlfriend is disrespectful for coming to my house and even getting out the car mind you she wasn't there but whatevs but my thing is if I'm out here cashing out on your baby and you don't have a job i can get out the car and pick up the things I've purchased for your baby like lord have mercy she's a headache but the question is am I wrong for stepping out of the car ?! I'm just not understanding one minute she wants us to coexist the next she dissent like I don't know what to do because I love that little baby and I'll do anything for him and his dad