Christianity it is.

Yes forgive her...and move on

Girlfriend this guy never loved you, he wanted to have sex with you...you should move on and forget about him. There is a better man out there for you who is not going to love you because they want to have sex with you. He is not better than you...move on girl

You have to learn to trust your man...and you should tell him how this whole thing makes you feel. No need to feel insecure your loves you!