<human>: This is going to be pretty tame compared to some. My Fiance (Sarah for purposes) went out on a work social event two nights ago, I was expecting her back in the evening, but she didnt come home, this isn't unusal as she often stays at her friends house (laura), I sent her a text and eventually got a reply, but something just seemed a little odd with her lack of communication about staying out, usually I wouldnt have to text her first.

Sarah spent all day on her phone yesterday claiming to be messaging people she was out with, but my suspicions were high although I still can't put my finger on why, she hasnt been acting noticably different with me, but while she was having a bath i had a very quick look on her phone, I really shouldn't have which is why i'm questioning whether raising what I found with her is a recipe for disaster anyway.

there was a message sent to Laura just saying "dont worry, nothing happened", there were no previous messages from Laura so it seems these have been deleted. And she had been chatting to Luke on messenger all day, but the final messages hit me hard.

> Luke: "I have no idea considering my blackout"

> Sarah: "I'm missing about 2 hours. I don't know what happened between the last pub and getting the taxi!"

> Luke: "My Memory ends in the greys and the thing"

> Luke: "and then restarts on the sofa cudling someone"

Do I raise this with Sarah, and if so how, i've looked through her phone behind her back and found messages which *suggest* she spent the night cuddling up with another man. If i raise this am I set to open floodgates to destroy our relationship just a few months before we're supposed to be getting married...

Could you distill the essence of the text into 1-3 sentences?
<bot>: suspicons of something happening on work night, found slightly incrimiating messages searching her phone, do I raise this with her, am I about to destroy our relationship?