How Can I Change?

Trust me I totally understand what you mean as far as being able to get along with guys better than females.  I've always been the same way and my current boyfriend of 2 years knows and understands this.  But even though I'm still friends with my guy friends, I still respect my man and there are limitations now that I'm in a relationship.  It's part of sacrifices that both sides make if they want the relationship to work.  So, I agree with the other comment to put yourself in his shoes, if you are flirtatious with these other guys, that's probably hard for him to deal with cause, I mean, would you like to see him flirting with other females??  It's just a matter of treating a person how you want to be treated.  Relationships take time and effort if you want them to work and I believe that there's always room to learn more about your partner and what makes them happy.  It's just like a job.  Hopefully this kinda helps you out.

I completely sympathize with your situation.  I sometimes have similar situations arise with my boyfriend and work through them.  It's one of those relationship problems that many people have to deal with to become a better couple, so just talk about it and try to work through it.

Well try showing your boyfriend more attention maybe he feels neglected
but try to see what it's like to be in his his shoes and its perfectly normal for you to have male friends

Talk to him let him no you only want to be with him if he doesn't get it he doesn't trust you it all about trust if you ask me