[Twigg]

Okay so here's the deal..

(backstory):

I've been dating my current boyfriend for about a year and a half now. But when we first met each other he had been broken up with his ex of 9 months for about a month, and then we stared dating a month later. We dated for a month, then he broke up with me because he "didn't want to feel tied down" which I understood, because he pretty much has had girlfriends constantly since he was 15.
Then we dated again a week later when he realized that he missed
me.
THEN we broke up AGAIN about a day after his ex started texting him, and then after he broke up with me, he dated her for about 3 weeks, and she cheated on him AGAIN, so once again he came crying back to me.
I took him back again after about a month of us just talking and realizing how we really felt and we've been great ever since but...

Lately I've noticed that I get SOOO paranoid about him cheating on me with her or leaving me again for her.. and it's evolved to me even being worried about his female friends (and he has a lot of female friends). Like.. I know he wouldn't ever cheat because every past girlfriend of his has cheated on him, and he knows how it feels, but.. I just can't get over that feeling, ever.

Maybe it's because I don't think I'm as pretty as they are. I don't know. But I do know that I need help trying to get over this.

It's gotten to the point that whenever he doesn't respond to my texts within an hour or something like that, my mind goes right to him talking to a girl or spending time with them and I hate myself for thinking that way.
:/

I really... I'm at a loss. Help please..

Suggestions?

EDIT: I'm not totes crazy though. Like, I give him his space and I don't let him know that I'm crazy jealous. I'm not like that creepy stalker girlfriend that freaks out about everything.

Like, I KNOW we have a good relationship, and even though I know that I still worry uncontrollably. That's my issue.