Girl with conflicted feelings

Hey everyone :) I’ve been ranting about my feelings to everyone I’m close to but can’t seem to overcome them no matter how much I talk about it.

M y boyfriend and I have been dating for 8 months now. We have a really good relationship. We communicate, are goofy together, I have a great relationship with his parents, our friends like each-other and get along with each of us. So what’s the problem right? Well hes REALLY obsessed with his phone. He meets random people on Twitter, gets into group chats with them will pay so much attention to these people he doesn’t know. He used to use his phone a lot when we were together and talk to those people until I told him how unhappy it made me. He also has snapchat streaks with girls from the internet, and girls who flirt with him. I told him how all of this makes me uncomfortable, but I feel conflicted because I don’t want to be that girl and be like “don’t talk to any female ever” I don’t want to control him. But He knows that it really bothers me and makes me jealous . He thinks it’s not a big deal. He says they are just friends, but something about it makes me feel off. I don’t know how to overcome this and it makes me Want to be spiteful. How do I not give a fuck that he’s giving so much attention to other women?? Do I need to grow up??

If you took the time to read this thank you girl! Please leave whatever thoughts you have on this subject and have a great day 😊