Most Helpful Guy
It's usually easier for the one who breaks up because they've usually been thinking about it a while, so already had time to mentally process, move on and in some cases to line up someone new. Whereas the poor dumpee usually gets taken more by surprise, and has not already been investing time in finding someone else.
@"she's already done so much for him already"
It's really callous and self-absorbed to say stuff like that to your ex-gf, wow. I mean, even if it's true, you don't say things like that - if you have any sense of caring or thinking about the feelings of other people around you, it should be obvious.