This is really dumb and I feel like an idiot for posting this but I'm looking for new coping mechanisms lately and I've got to give this a shot, so please be gentle. 

My boyfriend works at the corporate offices at a big oil corporation and I was on my way to drop something off/pick something up from him and as I drive up the main road on their campus, I saw a gentleman on his lunch break going for a run. It was a hot day and I was a runner before I gained weight and as a sign of encouragement I gave a clap and a 'woo'. My mom (also a runner) and I used to do this to fellow runners when I was a kid and as I grew up. I thought it seemed like a positive gesture at the time, however I cannot shake the feeling that I behaved too impulsively and I'm mortified that I made my boyfriend look awful or that I will see this person again. 

I cannot get it out of my head and I know it's so stupid but I just feel mortified. 