My insecurities...should I really be worried?

Well basicly I’ve been dateing my boyfriend for almost two months, and since the begging I’ve been really insecure and kind of jealous. It’s not like I dont trust him but there is a few things I think I’m entitled to be worried about. well 1) In his last relashionship his girlfriend cheated on him but he didn’t break up with her, so this one girl(his friend that he has a crush on) asked him if she could to be the first girl he would make out with and he said yes his girlfriend found out so she broke up with him so they both cheated on eachother. 2) All his friends are girls he thinks 5 of them are hot, some of them have crushes on him. 3) He’s still friends with two of his exs(the first one is completely harmless but then second one is a slut) and like…4 of them bite him(arms,hand) and he doesn’t stop them.4) he’s still friends with the girl he cheated on his ex girlfriend with, he has a crush on her still, they ride the bus together, and he’s always home alone. and she also has a crush on him. But she has a boyfriend but she still cheated on her boyfriend to make out with my boyfriend.(and she’s really really pretty way prettyer then me) He always says he’d kill himself rather than hurt me, and he’d never do anything like cheat on me, and he always goes on and on about how he’d never cheat on me but…he’s a guy, guys get tempted and might do somthing. Should I be concerned? or no?(he didn’t tell me any of these things I saw the chat him and my bestfriend had)