Fiance talking to her crazy ex who is still in love with her
My fiance got out of a bad relationship about 6 months before we met. The dude moved to another state but has never stopped sending her crazy texts and facebook messages talking about how he will always love her and will never give up on her.
What is driving me crazy is that she won't tell him to stop, and "feels sorry for him". He is back right now because of a death in his family, and he came to my house with his brother and his bro's wife to see my fiance the other day while I wasn't home. She let them in and even hung out with them for a while! Tonight he sent her this crazy string of texts and she deleted her responses to them. When i confronted her, she lied at first and tried to say that it was his sister she was talking to, and then admitted that it was him and she "didnt say anything out of line" and just didnt want me to trip out. (we both kind of have trust issues from past relationships so we freely allow each other to read our texts if either of us start feeling suspicious over anything - just a way for us to show each other that we have nothing to hide... but that trust is seriously damaged after finding out that she deleted messages that she didnt want me to see..)
She is extremely defensive over this, and thinks that I'm being ridiculous, and that I should just trust her. Not sure what to do, any advice?