Is it cheating to flirt with random people on Instagram while you are in a relationship?

Updates
10 mo
I'm weirded out when taken people try to flirt with me. This guy back in ninth grade I went to tuition was sending flirty messages. Quickly blocked him. I knew he had a girlfriend. Why do some guys do it?

If you're unhappy with your partner, they deserve to know instead of y'all looking for options.
Is it cheating to flirt with random people on Instagram while you are in a relationship?
Post Opinion