I'm dating one guy and leading on this other dude and hanging on to my ex because I'm still in love with him... I'm a mess
How does leading these guys on make you feel?
I felt great because I'm in control and he is not.
Feeling in control is nice. But you shouldn't lead people on to gain control. This can be harmful for others and damage your relationships.
It's fine, I was just messing around with him. Why do you care so much?
I only care because do you think you realize how much pain they will all be when they find out they were being played by you? I think it's best to stop all external relationships and just try to improve the one you are committed to.