Is it bad?

I'm in a happy and loving relationship of 3 years with my wonderful boyfriend.

Today while I was out alone a guy got a bit flirtatious with me. I didn't flirt back tho.

My point with this is that sometimes I've felt unattractive etc and having this guy think I was attractive enough to try and flirt, kinda made me feel good about myself.

Of course my bf also makes me feel good. But I think it felt kinda good to have other people besides my boyfriend or my mom to tell me I look good.

Is it bad tho?