Why did she put a picture like this up with another boy?

[Stroder]

I would definitely bothered if my girlfriend did that. You need to talk to her and tell her exactly how you feel. And when you do, make sure you really feel satisfied from the conclusion. I've learned the hard way that little problems like that can indicate bigger problems in a relationship. The best advice I can give you here is that if you have any nagging little problems with her reaction when you talk to her about this, don't just let it go. It may not seem like a big deal, but this kind of thing often points to a bigger issue, and if you let it go without being satisfied, you're letting the problem continue.

I wouldn't advise ignoring her back, though. You don't know for sure that she ignored you on purpose, and reacting that way is just being passive aggressive and not making the problem any better. If she really did ignore your call and text message, that is something you should talk about, but you should try to be the mature one and not do the same thing to her.

Really, you need to talk to her. Communication is the key to a healthy relationship. Her behavior isn't great, but it could be that she really doesn't see a problem with how she's acting, and either way, she needs to know how you feel.

Good luck.