I found her asking her ex's if they still have feelings for her?

[izabel]

Bring it up to her and ask her why she would ask them all that. Maybe she is just curious, but it does sound sketchy. At least it just wasn't one guy because then I would definitely assume she still had feelings for him, but to me it just seems she's curious. Did she ask them straight out or was it just in conversation with them and it depends what else was said in the conversations.
If she wasn't flirting and nothing else suspicious was being said I don't think you should leave her if she really loves you hopefully she just explains things, but you need to ask her about it.

Also, it seems there is no trust in your relationship. There is no reason you two should have each other's passwords. That is ridiculous, you clearly spend time checking up on her accounts and who she's talking to. That is an invasion of privacy and I would hate if my boyfriend did that. I would feel suffocated. You both should change your passwords and learn to trust each other. If there is any suspicious behavior, then you ask hey have you been talking to anyone and if there is anything then you have them show you and go from there. My boyfriend and I have gone through things in the past to where it's hard to trust, but we overcome them and you just have to trust each other. If you get hurt, then you get hurt, but you need to give them your trust and vice versa. I would never ask my bf for his passwords and I would laugh at him if he asked for mine.