if you are doing it just for pleasure, then that is fine, but it nevertheless is hollow and pointless.
Hollow and pointless? That is not true even psychologically, nevermind physically /friendly wag of the finger

You are certainly aware intercourse increases your immunity, truly improves your sleep – both the crucial REM and the normal, non-REM phases – relieves a lot of stress, part of which would be caused by the lack of it, allows you to generate Oxytocin and reduces blood pressure among other, less studied positive effects.
Having sex regularly is always a good for you biologically. Always being in a relationship is not.