不要吃醋。 和他的朋友们友好相处。 让他自由地做自己的事情。 保持积极心态。

Given the above summary, write a detailed text in English for it.
Your boyfriend won't think you love him just because you obsess over his ex-girlfriends or any girls who come within a twenty-foot radius of his person. Instead, he'll just think you're insecure about the relationship, and he'll be annoyed and won't want to hang out with you. If you want to be a cool girlfriend, have faith in your great relationship and don't be freaked out if you see him talking to another girl.  Don't get jealous if your boyfriend and his buddies talk about another girl. Hey, if the girl is hot, you can admit it too. As long as your boyfriend isn't making creepy comments (and why would he?), you should show that you can appreciate a beautiful woman, too.  If any time another girl comes up, you jump to criticize her looks, her weight, or the outfit she wore last Tuesday, you will just come off as looking really insecure. Instead, show that you know you're beautiful but that you're not the only woman in the world, and admit that the other girl is a cool chick. Don't be mean or snooty to his female friends. If you're being a crazy girlfriend, they'll report back to your man. Don't snoop through your boyfriend's phone or Facebook to see if he's been chatting it up with other girls. If he finds out, then he won't be able to trust you. You'll have a path straight to your man's heart if you're cool with his bros. Seriously. If his friends love you, then they'll actually want to hang out with you, and won't think you're just another one of those possessive girlfriends who won't let her man be any fun.  Take the time to get to know them. If they're receptive, ask them about their lives. Show that you see them as individuals, not just as the guys who hang around your boyfriend. Don't get upset if the guys are overly obnoxious. Just let them be themselves. You don't want them to feel like they're hanging out with their mom all of a sudden. If you want to be cool with your man's bros, then don't hang out if you're not wanted. Don't intrude on an obvious "guys only" night, or sit through a male activity...