If you sleep around, doesn't this effects a guy's bonding capacities too?
https://www.healthline.com/health/love-hormone#what-is-it
If you slept around and had many relationships that if a break-up happens, it won't mean much. You don't get affected by it. If you're able to replace someone so fast in just hours or days after breaking-up; I don't think that's normal. You're ability to bond is probably broken by then.
Superb Opinion