How can you tell if your girlfriend is cheating on ...

you can hack into her hotmail account and read her emails. it is extremly easy to do this. it would only work if your girlfriend had hotmail though. to get a hotmail hack all you need to do is type in email hack onto google search engine

BmB,how can you know if she's cheating on you and why?

That is simple question and answer might lie right here 

You need to read magazines like GQ and Maxim and Esquire to get the valuable tips those magazines provide. You can find a lot more magazines to subscribe to if one issue isn't enough through an

Suspicious activity will include times you are trying to locate her but you can't reach her at home or by phone.  She will have a different reason every time you ask where she was.  You will smell someone else's cologne on her shirts.  Her eye contact is not what it used to be.

u could just ask her and she if she is honest about it.

She may accuse you of it to cover herself, she may try to come up with strange lies to cover up where she goes, give too much attention to you ornot even enough attention. If there is no trust why be with that person at all? Or try just asking her straight up, after all it may be just in your head.

well if shes irratated by small things, looking different..new hairstyle out of the blue!! sudden change in her wardrobe,new clothes..new underwear!! your relationship 2 her may have run its course so she just mite be bored and needing some spontaneousness in your relationship...surprise her with something to keep her from wanting you and only you!!...

goodluck.

There are tell- tale signs that your girlfriend could be cheating on you....

She goes places that she normally wouldn't go or takes longer than she normally would to run an errand or doesn't say where she is going.

She starts to take interest in things that she wouldn't have ever bothered with, such as a different genre of music, or maybe a type of sport she was never interested in before.

If she's internet savy, she may have her laptop or desktop PC password protected and be weary about you using her computer or even her cell phone.

She seems distant or irratable when you are around her, or may not want to be intimate with you at all or even feel as if intimacy is more of a task than something that should be welcomed.

These are just a few things to look out for- but they are the most obvious if you know what to look for.