My relationship has lasted
We have a Should I Stay or Should I Go board where I'm sure you'll get some support and advice: http://forums.ivillage.com/t5/Should-I-Stay-or-Should-I-Go/ct-p/iv-rlshouldista.
ErinCommunity Technical Assistant, iVillage.com
I think you should ask your friends if they have concrete reasons for not trusting your partner. Weight it out and also listen to your partner's side of the situation. Good luck.... and I am sure you will make the right decision.