Would you stay in a relationship just for the best sex of your life?

Fellow men, I met this woman 3 months ago and having the best sex my life (and maybe she's too).

We are always horny around each other. She's insanely hot and knows how to use it to turn me on. And I understand her mind and body well and get her to O almost everyday.

We makeout at every avenue we visit. Every corner in her apartment, public places, everywhere. Good power dynamics. Both open to experimenting.

Even more insane is that the longer we are together, the better the sex keeps getting.

But I notice when we talk, she's promiscuous, has a pattern of cheating, lying in relationships. She sexually manipulates me too. I'm a weak man. 🥲

Clearly, this is not someone I see a long term future with.

But I'm afraid I'll never experience this ever again. It is very rare.

Is it a good idea to break it off quickly or to enjoy while it lasts? My mind says breakup, my body refuses.

What can I do to make the breakup easier? Since the more I wait, I feel like wasting my own time (am I?) and leading her into falling for me.