Men are not friends with girls. They are just friendly with girls that they want to sleep with, or girls that they have already slept with. Your boyfriend knows this because he is a man. That is why he doesn't like it when you talk to your "guy friends."
He flirts with other girls!
probably their boyfriend's friends
no
A) he has many friends or B) u need a new boyfriend
if your boyfriend listens to his guy friends more, don't take it personally. he still respects your opinion, but just like girls go to their friends that are girls, he's going to go to his guy friends for a lot of things because they will know more about being a guy. But if he is listening to his friends and doing things you don't approve of, then you should let him know because it isn't okay to disrespect you.
Cheat not be social with their family and friends
Yes
a lot
Your boyfriend probably just has a lot friends that happen to be girls. I'm a girl with a lot of guy friends. One of my best friends is a guy who is married. I have know doubt that he spends more time with me than he does with his wife. She is a very secure person and has no problem with this. She has her own very busy life. Our friendship is strictly platonic! I've had trouble with boyfriends being jealous of my guy friends. They are usually the very clingy type. There is nothing more unattractive than jealousy.
If you are secure in your relationship with your boyfriend, don't worry about it. It's okay for guys to have other friends that are girls.
If you mean plain, vanilla "friends" with other girls, not "boyfriend", there is not a thing wrong with that - he is a normal human being. If you don't want him to be even "just friends" with any other girl, the problem is yours, not his.