AINTW for wanting/trying to set boundaries with my boyfriend’s mom?

I (24F) & my (26M) bf have been together for about 4.5 almost 5 years. we get along pretty well, we knew eachother in highschool so we’re pretty comfortable with each as friends before we were a couple. i have 1 child from a previous relationship. when we got together my first son was 10-11 months old. we took things slow, as when we stared talking i had a 3 month old baby.

his mom & him have just had each other since my bf was about 7-8 years old. ( 1st - second grade age) his parents divorce was really messy and his dad kidnapped him or held him captive from him mom at the beginning and once she got him back his dad needed tried to have a relationship with him until he was 14-ish. zach is 26 years old now. we’ve LIVED together for about 3 years and some change. i’m not sure how long after w moves into together after until we had our own child and once we had our own child, his mom just got worse. Like the very beginning of our relationship if I would come over to his house to eat dinner with them, she would make my plate cut up my food, she would do the same for him. She would kiss him on top of her head and text him” good night son. Mama loves you so much. You’re my favorite person in the whole world.” & would text him roughly the same thing every morning.

Eventually, once she moved out the text messages started to get a little worse, and she moved into a camper in our backyard. It was over at our house every day of the week.. at this point I was still in my first trimester in less than three months pregnant with our second son, he came to a point where I told him that I didn’t feel comfortable when I own that was supposed to be yours because his mom was here every day of the week. And he had told her and her response to it was well I guess I’ll just leave and go find a house somewhere far off that’s all I do is bother y’all.

/Forward nine months later when I had our baby, she took pictures of him and the baby. He posted it on Facebook saying my son’s first baby & my first grandbaby she didn’t take me anything. She didn’t post a picture of me with my kid or anything..

/Forward four months after that my son got RSV and we highly asked her and everybody else in our family not to kiss the baby. Well I found out she was still doing it and made a Facebook post saying I don’t care who your title is or what you think your title is to my child. You can be cut off real fast and she found out that it was about her and she messaged me saying she didn’t like how I did that on Facebook and then I responded with why I don’t like how you don’t listen to any other roles I lay with my children, so I guess we both got our feelings are. And then, after that, I got into a big argument and she didn’t talk to me for like a week, but would still come over to the house to see the grandkids & my bf. She’s still over here every day of the week from 4:50 PM to 8:45 PM Monday through Friday every day of the week..

A few months ago, probably more than six months ago and her boyfriend broke up and instead of staying in our guest room or staying in one of that house as many of our friends coworkers and our grandfather offered her. She decided to stay in intended while he was in the middle of winter..

And then she got one of those tiny little portable buildings that you can turn into like a she should type thing knowing you can’t have things like that in our city limits where we live and then spend probably up to $18,000 on getting it and stuff have to turn into a home just to get back together with her boyfriend and leave it at our house.

AINTW?