Been seeing this girl casually for a while now. Sex is fire, energy is good when we're together, but recently I found her Threads account (she assumed I didn't have one). She's out there posting thirst traps, flirting with bikers, and clearly chasing guys who look richer or more flashy.

I haven't confronted her. She has no idea I saw any of it.

I never planned anything serious with her - no long-term intentions, just casual. But now I'm wondering:

Should I keep her around strictly for sex and detach emotionally, or just cut her off and move on?

Personally, I'm more inclined toward keeping her around for casual sex, as it'd require lots of energy to find someone else, since I'm not interested in building a long lasting relationship anyway, but a part of me feels disrespected.

How would you handle this? Looking for straight takes.

EDIT: Just to clarify to future readers, by casual I meant that from my end I have a life philosophy that every relationship will be not serious and I'll never commit and reach marriage with someone, that's just a personal decision I took. But for her we're in a relationship and we're exclusive to each other, and actually each time we're together she keeps insisting "I'm only yours and you're only mine" etc. So the reason I felt disrespected is because she's lying to me. I don't care much because that's one of the reason I decided I'll never stay a long time with a female because I realize eventually they'll start playing such games, it's their nature and I accept it.