You had a “movie moment” where someone flirted with you while he was performing. Only, you’re not an actress or a performer, and you took the flirting for more than it was meant to be. The reality is that this guy who flirted with you as part of his act hasn’t asked for your number, invited you for a date or showed up at your doorstep. This guy from the stage was having fun during a performance — and you had fun, too! But it wasn’t a “dating” reality. It was part of his performance night.
However, if this incident woke you up to the reality that your two year relationship, with both of you being 23 years old, has run it’s course, and you want to see what else is out there, then give it a little more time to set in, and see if this is really a step you want to take — and if it is, do it. But, understand that you may be merely “drunk” from your movie moment, and with time you’ll realize it was just exciting and fantasy even though it felt real for a night.
I hope that helps.