Feeling like a bad girlfriend

Maybe I’m overthinking.

My boyfriend was talking to his mom on the phone for like 30 minutes about random stuff and I was being annoying and was jokingly whispering “wrap it up” semi joking but also because I wanted to talk to him about stuff. I feel bad, sometimes I get like this idk why. I get along with his family and don’t know why I get like this. I told him I guess I get a little jealous lol it’s so weird and I’m working on it.

Then he was saying that we MAY possibly (maybe) have to watch his sisters newborn child one day a week since we both work from home and she isn’t getting paid maternity leave. And I immediately was like “well you didn’t ask me and you just volunteered and said we would?” But I have to understand that he to his core is a family man and will die for his family. That’s really why I fell in love with him. I also have to realize that if I want to be with him, I’m basically marrying his family. It’s a packaged deal. I apologized right away and fixed my attitude.

I feel bad for being annoying now and we talked and it’s fine but still. I feel childish and immature.

UPDATE: thanks for all the comments. I also wanted to mention I have been having some boundaries issues as I just moved in with my boyfriend this past summer (27) and (28) and I moved 45 minutes away from my family and his family is very close by. He hangs out with them a lot on the weekends and also plays intramural sports every Sunday with his whole family which is very nice but at the same time, it’s made me feel like it’s not our life but like I’m jumping into his world if that makes sense. Sometimes our plans change because we will be out with his family and I want like a little alone time but his family is like hey are we all hanging out and it’s hard for my boyfriend to say no. I totally understand being with family and I really like his family it’s just sometimes I want us Time. I’ve been having a tough time adjusting and finding my role and place so I do get jealous at times or want more of his attention which isn’t always fair. I just wanted to update and say I am working on this and have an appointment with my therapist to discuss and how to be better. Thank you all.