I have been dating my girlfriend for 2 years now. Before we started dating she had a relationship with one of my friends. She doesnt consider him an ex-boyfriend, he was more of a fling that lasted about a month. I was well aware of it at the time. My relationship with my girlfriend has been a little rocky as of late. And i have noticed she has been venting to that guy friend thru text. A month ago we were at a buddy's place for a getogether. She was sitting next to him and he was giving her a guitar lesson. Bugged me to see him touch my girl's fingers. Last week i was going through her phone just looking at her pictures she has taken and i found a 2 minute video clip she took of him and her. In it they were sitting in a kitchen having a talk. I am dumbfounded. Have no idea where it was taken. I was not present. It looked like they were privately by themselves. Starting to wonder if they are going behind my back doing things they shouldnt.