Even though he is a guy who has a girlfriend, he doesn’t believe this precludes him from being flirty with a girl.

If anything, he didn’t see anything morally wrong in flirting with you, as he already knew he had no intention of taking matters any further than flirting.

This is how he sidesteps having to contend with a guilty conscience or any culpability in flirting with you or any other girl.

As long as he never takes matters any further than flirting, he thinks there is no harm done.

When he flirts, he experiences an ego boost.

He got to enjoy how it affected you emotionally, thanks to how you responded to it.

The more into the flirting you became, the more motivated he got to keep going.

Although you were thinking that this was a romantic rapport being established, it wasn’t for real.

His primary intention was selfish.

It was a power trip.

He loved it when you laughed at his saucy jokes and swooned at his compliments.

All of this reminded him of what it was like to flirt with girls when he was single.

Seeing you respond so positively to the flirting gave him reassurance that he hasn’t lost his sexual appeal to the opposite sex.

Although it seemed as though he was demonstrating a genuine interest in you, all he was doing was enjoying the influence he had over you in the moment.

For him, it was all about the moment.

He wasn’t thinking about what would come after all the flirting, like you most probably were.

He was merely staying in that present moment, enjoying the effect all of the flirting was having on you.

Yes, he has a girlfriend, but he didn’t care about any of that.

In reality, he can’t remember the last time he flirted to this degree with his girlfriend and she responded in such a positive way.

He misses it.

Since he got into a committed relationship with her, she has progressively become less and less reactive to any flirting he instigates.

He loves flirting and the rush of dopamine it foments.

It’s a significant part of his love language.

Yet, his girlfriend has steadily lost her desire to flirt with him.

He struggles with how much of her sexy and flirtatious personality has been lost since they got into a committed long-term relationship.

It’s as though she has settled into the comfort and security of being in a committed long-term relationship with him and no longer deems flirting all that important in their relationship.

Since he can no longer flirt with his girlfriend to the extent that he once did and have her respond enthusiastically, he turns to girls outside of his relationship.

You could be the first girl he has wholeheartedly flirted with in a while, but you won’t be the last.

The satisfaction of seeing how positively you responded to the flirting has given him the confidence and reassurance to do this again with another girl in the near future.