Is it a bad idea to ask her out again?

Dude, i've been in EXACTLY the same situation, don't do it. Don't ask her out again, because as soon as she feels better about the guy she just broke up with, she'll leave you. She just wants to be with you for comfort, because she knows your "safe" . Don't let her control you. I know you love her, but you can get over her, don't get back with her, because it'll only be temporary happiness. You don't want to get hurt again. Make the right choice