Is it wrong for me selfish before I move?

My roommate used to be my best friend. We got intimate too quickly and lots of problems arose. I move out in December. We’re both in therapy working on ourselves but we both want to be intimate. Cuddling and sex. We both know it’s bad but at the same time we will be getting the distance we need once I move away. I’ve been detaching myself from him for months nearly a year now and we already had sex since our fallout. The fall out was early July and the sex was about two weeks ago. I know I’ll miss the sex but emotionally I’m done. Is it wrong for wanting to be selfish since we won’t be speaking to each other for who knows how long?
Is it wrong for me selfish before I move?
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