How do I know for sure if my Boyfriend is over his ex?

[Ash]

I've been a bit suspicious of my boyfriend, mostly because she added me on facebook, and is being creepy. Little things she and he have said made me think they still like one another. I don't want to be cheated on again, but what should I do?

[Tyler]

She added you on Facebook? Ewww that's kinda gross, she might be a lesbian lol. No really umm let's see...honestly I don't see a problem but that's me. I think it would be wise to calm down and just play by ear, you will get enough data to properly assess what to do. If they still like each other, so what?!?! It ain't a thing but a chicken wing babe. If you like him, knock a ***** out, if you truly don't think it'd go anywhere, that's that. Don't dismantle your brain simply over some creepy ass chick. Maybe ask her to hang out with you to get a feeling of her. I rambled and talked endlessly hope you get some help.