So me and my GF have been together for almost a year now. She's always telling me how in love she is, how I am her best friend and how she's have never even remotely felt this way towards any guy she has dated in the past. But even after all of the love and affection she shows, I still can't trsut her enough to the point where I can fully fall in love with her since I'm holding back in case I get hurt. It sucks. Any ideas on how to change? Or overcome this? And no therapy isn't an option.