[!Yaminashi]

From what I read it doesnt even sound like you REALLY wanted to be with him in the first place. I think your first step is to step back and really think hard about what you want out of this.

Did you two become official because he was always there, or did you actually like him?

Secondly, I can sort of see why he gets suspicious when you're always out with guy friends/guys are always texting you. Try to see things from his POV. I only say this because a close friend of mine got cheated on recently. He trusted his gf fully and never gave her shit about anything, only to be treated as a doormat later on in their relationship. Its sort of a double edged sword. If you trust your girl fully, there's a chance she'll do some shit behind your back, but if we ask one too many things, we're "psycho"

I'm not saying he has the right to question you whenever you go out, but just because he's a guy doesnt mean he wont get insecure/suspicious at times, especially if you're an attractive girl thats always surrounded by guys.