Hey Ninja,

you can't paint her with the same brush the others are painted with; accept her the way she is, a friendly outgoing person who doesn't try to sneak behind your back to talk to other people or you can kill the love with suspicion and miss out on a really good thing.

I promise you it will be the suspicion and not another guy that damages this thing you have...take a deep breath and suck it up....if you can convince yourself she's cheating you can convince your self shes true...I'd bet on the true...