I agree with seraph..... Your ego is damaged at the fact he isnt suffering inside like you want him to.... A common thing with leo men when water women tango with them.
If you really are serious with ending it.... then the best way to go about it with a leo is just ignore and walk away.
I ended it with him today, and all he had to say was "ok x"
I was really sad about it, crying, and just wanted to know...
deep down will he care?