ok so me and my boyfriend have been dating for about 5 months now. he's been on vacation the past 2-3 weeks and saw that me and a group of friends were all together hanging out. the only problem is is  that one of the guys that used to like me was with us. he doesn't like him because he always ask if me and my boyfriend are dating. the first time he asked it me and my boyfriend were hanging out, and i basically tried hiding it from him because i was worried he'd think me and the other guy were like "flirting" and stuff. (which we weren't)  but this happened 3 months ago and we talked about it and i apologized for hiding it because it probably seemed fishy that i was trying to hide it. but the past few days all the sudden he is saying that me and him still talk and he thinks i have feelings for him. and i constantly tell him i don't but he doesn't trust me. he just keeps repeating how i probably still like him and it's getting frustrating. i love him so much and wouldn't do anything to hurt him but it hurts me that he doesn't trust me but i would understand why. it just bothers me how he's constantly bringing it up and just won't listen to what i'm saying.