<human>: My boyfriend and I have been dating 5 months.  We met while he was in a relationship (unbeknownst to me) and by the time I found out I was already in too deep.  I seduced him, he broke up with her a week later, and we started dating a month after. Our relationship is far from perfect; we fight often and both have trust issues. He is out of town for a school-related convention for the weekend with a couple classmates. He had been acting very shady (not responding to texts, not answering the phone) and I started to get suspicious. I don't know what possessed me to do this, but I downloaded an app that allowed me to text anyone with a fake generated number. I began a conversation with him, pretending I had met him on the trip one night at a bar.  I took it so far as to find a random person on facebook (lets say her name is Tina for clarity's sake) and pretend to be her so he would think I was real.  I even looked up the address to a hotel in the city he is in when he asked where Tina was staying.  Long story short, Tina tried to seduce him and he finally agreed to have her pick him up and go back to her hotel. At that point, Tina said "once a cheater always a cheater" and he called me (his gf) immediately. I denied it and Tina said to him "its (my name). We are done. Forever".  He had one of his friends call multiple times and then text saying that it was him and he stole my boyfriend's phone and was just joking around with who he thought was a random person.  However, I recognized how my boyfriend communicates: phrases he uses commonly, etc. He went to the extent to clarify with Tina that he doesn't have a car with him, they couldn't go back to his room (because he is staying with classmates), has to wake up early in the morning to be at the conference. I just don't believe that someone would incorporate all of that if they had no intention of sleeping with Tina. Obviously, there is no way for me to prove that it wasn't his friend. I need advice. BAD.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: I suspected my boyfriend of straying, so I created a fake number and tried to seduce him. He agreed, but now is saying his friend stole his phone and was just kidding around.