Why am I so paranoid?

by Hayley
(UK)

My and my boyfriend have been together 11 years. He was 14 I was 15 when we got together. We have both cheated very early in the relationship. I slept with someone, he didn't. I know he loves me and I do trust him but I am so paranoid when he's around other girls or is out with the lads. It's really putting a strain on our relationship at the moment but I don't know how to stop thinking like this.

I love him to pieces and really don't want to loose him slant advice will be much appreciated xx