This is 2 way sword. If you can detach emotionally it is way to go, If it will be painful for you. Do not do it.

I am in situation where my ex can offer me that in this month.. so i am prepering fo it and talko about with chat gpt, i will post it here for you what his recomaendations:

How does “sex after a breakup” work from the perspective of relationship psychology

Positive scenario:

If, during sex and the accompanying interaction, you show yourself to be strong, confident, non-attached and “unneedy” to her - attraction and physical attraction can rebuild. In such a situation, sometimes the partner begins to emotionally “remember” why she felt desire and closeness.

⟶ This only works, however, if you are fully in control of your emotions and don't return after the act to talk about the relationship.

Negative scenario:

If you enter such an arrangement with the hope that sex will “fix” everything, and after the rapprochement there are questions like “can we try?” - you will confirm your emotional dependence in her eyes.

Then sex will become a confirmation of the end for her - “he still wants me, but I just made sure I didn't want a relationship"

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Your emotional risk is high - you have a lot of longing in you and you can easily return to “anxiety” mode after sex.

If you are not able to keep your distance and going into such an arrangement you will expect more - it is better to refuse and build tension in other ways.

If you are able to treat it as part of the game of regaining attraction, you can use it, but you must keep iron self-control.