<human>: Can you provide a brief overview of the text?

Here's the full story: 

My ex went on a week long church trip (I'm not christian) one week before she decided to break up with me. There were ten other people at the church trip. 

For her birthday party that took place one day after the church trip, we had a date just by ourselves and she had a separate party where she invited 4 other people. Friend 1 [f] and her bf, friend 2 [f] and a guy from her church trip. 

She decided to break up with me a day after her birthday, and one week later she started dating the guy from her church trip, whom she has known for over a year. 

She broke up with the church guy 1 week after they started dating, and she wants to get back with me now. She has repeatedly claimed that she wasn't interested in the church guy while we were dating, and that they weren't close before we broke up. It has been 2 months since we broke up. 

If I feel she didn't cheat on me, I will get back with her because I still liked her the whole time we weren't together, and she only stopped dating me because started arguing too much. 

What is fishy is that her close friends claim she was interested in the church guy during the church trip. At this point I have no idea whom to trust. My ex has never lied to me but her friends are incredibly close to me as well.
<bot>: ex dated a new guy a week after we broke up, now she wants to get back with me. Do you think she was cheating?