We were at a festival, and I had one too many alcoholic drinks in me. I got close to the space heater-the festival was outdoors so it was cold, and the other guy that was there with me was a little drunk too so he was being flirty back. My boyfriend was there close by and he noticed everything. We never exchanged numbers, but the other guy just rubbed my lower back but I do remember being a little flirty with him back.
He barely mentioned it today but I know it upset him. He looks very sad about it and I feel like such an idiot for hurting him. I'm very much in love with him and we want to be together forever, and it was a huge mistake on my part. I've been really insecure lately with his ex-girlfriend coming in and out of his life recently (she picked up some stuff at the house they used to share a year ago-but he swore he was done with her). Plus we've been having some financial issues and alot of added stress.
How do I explain to him that I didn't mean to upset him? Will he trust me again? How can I build trust with him? I hate jealousy, and I've never thought I'd be the one making someone jealous. I feel like ****. He is a wonderful guy, I don't want to lose him, or be without him. I'd do anything to make him not be so sad anymore.