Trust / Romance issues after gf goes on work trip (drinking) with 99% Male coworkers at youth convention

My gf acts like this around 1 friend. They just got back from Mexico. Same thing she wanted to talk everynight. Read all my messages the one night, didnt reply or answer the messenger calls. Just read them all. Finally called crying at 5am. Left voicemail etc. Called everynight after. Came back a totally different person. Trusted her 100%. But now I feel like something happened. She won't stop bringing up old stuff from years ago. Isnt happy, relationship is feeling empty. Won't make eye contact etc. Sex feels like shes somewhere else. Definitely hurts a lot. Insides feels like a torn up mess.

Her friend is a bad cheating drunk. I know cause I dated her until she cheated on me a month after my dad died a decade ago. Im thinking the relationship is over now. 3 years down the drain cause I was trusting enough to be ok with her going to mexico for a week. With a dumbass friend. Trust your heart man is all i gotta say. Sucks a lot but gotta do it. Talk to someone if ya can.

/r/relationship_advice Thread