About my girlfriend cheating?

[Terry]

we stop talk talking for 9months. she admits to talk another guy but it was just talk. she claims he doesnt live around here, and that she never saw him face to face. he was on here facebook page, and the first time I asked her about him lied that she dnt talk to nobody. then after she was caught she told me she was gonna stop, but she didnt. she also called his # by heart, I think she sleep with him or someone else. she always claim to be tired from school, so we barely have sex