Being attached to this body and then to those who get attached to our body in some or the other ways (emotional or physical) is one of the hardest things to forget or deal with sadly. But with practice and time we could forget them or erase them.

This is more like a spiritual perspective obviously not a quick solution but it messes most of us in the kind of trend which had been going on where before marriage itself we might've slept with so many people and to save ourselves from it as per my personal experience spiritual perspective was the only thing which could practically help me out (even though tbh I haven't slept with single girl until now but I've dealt with this thoughts kinda problem in the past)