<human>: Provide a brief overview of the text.

I'll try to keep it simple. I have two friends, Anne and Susan. I'm good friends with both, but am much closer to Anne. Susan has been with her bf Jake for three years, but Jake and Anne were good friends before Susan and Jake met. I believe Susan and Anne only know each other in passing.

Almost a year into their relationship Susan moved to a different country. During that time, Jake slept with Anne a few times. Once Susan returned, Jake and Anne stopped messing around. Jake then started texting Anne a bunch of inappropriate things (I don't love Susan, I want you, etc) after Susan came back, but Anne ignored it. Anne and Jake haven't had any interactions (sexual or otherwise) with each other for a year plus, probably two years.

I didn't know Anne back when she was messing around with Jake, and she confided in me much after Susan's return. Friends have told me to keep this to myself since this all happened a while ago, and that it's none of my business. So I've just sat on this information.

Recently though, I've been spending more time with Jake and Susan and their dynamic just seems off, if not cold. Susan is itching to get married, while Jake keeps trying to push their engagement date back. I know Susan loves Jake, but I also know that she has a timeline in mind as to when she wants to get married, have kids, etc. I think she should think twice about marrying him, and this feeling is reinforced by his history with Anne.

Jake just doesn't seem as interested in Susan as she is in him or as he had been in previous gfs, which makes me want to vocalize my misgivings to Susan. But I don't know if it's any of my business to talk about his cheating (let sleeping dogs lie), and suspect that Susan would stay with Jake regardless.
<bot>: A friend is getting married to a guy who cheated on her with another friend. Shoulld I tell her?