Over my boyfriends moms shit

Am I a bad person ?

Her and I began getting closer this last year...but a few nights ago she called me drunk and said some things that highly pissed me off and hurt me, my boyfriend has two other kids by this horrid person who’s hurt mine and his relationship in the past and that has hurt his mom yet EVERY fucking weekend she’s texting this girl to see his other kids then when his mom doesn’t get her way she calls me and bitches etc...(my boyfriend is always working) but what I’ve noticed is sometimes she gets them then purposely harasses her son so they end up coming over here for ME TO WATCH, I have a 3 month old and a 3 year old with him, and I also have a child from previous and they use the excuse (oh the kids need to see each other ) it’s honestly too much to handle , it pisses me off because he barely sees the kids that live here...she thinks she slick ....she’s said rude things drunk like “well these kids came before YOU” and “get ready because the kids are coming this weekend the kids that aren’t from you” the next morning she called and asked if I was mad at her and I said yes...she said sorry but I’m still hurt and not happy with her...she then text me this weekend saying she has the boys and wanted to go see Christmas lights ....another thing that pisses me off is she bitches about getting these kids then forced them over here...another thing is she ONLY wants to do things together when the other kids are around...and ALSO she bitches she doesn’t see them but NEVER SEES HER SONS KIDS THAT ARE RIGHT DOWN THE ROAD OR ASKS TO SEE THEM BUT TAKES THOSE OTHER KIDS ....so I ignored her text because at this point I’m done with it...am I wrong ? Or am I being dramatic ?

And no I never mentioned this to my boyfriend because he would fucking side with her probably, I mean nothing to these people, boyfriend claims he loves me but this type of shits so old to me...