My girlfriend lied about not having her cellphone, when she was talking to

[ndnashlen11]

another guy. Why would she do that? Ok so my girlfriend went to a graduation party and she came home really late because she got lost. Then when she got home her parents took away her cellphone for coming home so late. So me and her chatted through instant messenger, and I asked her everyday for a week did you get your cellphone back and she told me no. Then 2 nights ago we were talking through skype and she kept looking down and smiling, and when I asked her what was so funny she said she just remembered something and I left it at that. But I could hear clicking noises, like the sounds you hear when your texting on the phone. After we hung up, I was suspicious about the noises and logged into her email account and I found that she and her best friend had been sending pictures about this muscular guy and talking about this guy and that my girlfriend was texting him. The next morning I messaged her on instant messenger and asked her about the phone and she said she didn't get it back. Then my friend 3 way called her and she picked up. I called her later on and she picked up and she told me that she got her phone back that day, and I told her I found out about the guy, and that she was texting him. Then she told me that she got it back last night. I hung up on her and haven't called her since. So what should I do? Did she lie about the phone being taken up in the first place? Should I forgive her and keep the relationship or just let it go? Please help. Thanks and God Bless.