OP I think that the thought of ending this relationship is too hard, so you are overlooking what is clear as day. Her suggesting that you go and have sex with another woman would be enough for me to know that its time for me to end things. I mean you are supposed to be engaged. Why is she saying such stupid things unless she has already cheated on you and thinks that you doing he same would sort of even things up if you ever found out? Honestly, in your position I would be doing some deep investigating.Dude Im starting to think you are a troll. If not you are the most naive man walking the planet. You live in a hallmark movie fantasy world of roses and chocolates. read the books I recommended in my prior post. Read them for your own sake. Stop putting your head in the sand. read the thread by Joka (old thread 2014). He realized he was a chump. You are the stable guy she sees as providing a safe home and respectability. Your the plain vanilla commitment beta guy. She's going to get bored fast. Read the Predatory Female for another version of what marriage is. One you are not aware of. It was written by an airline pilot. You are going to end up as a future chump. Does this chick have a high body count? Big red flag. Is she seeing other guys? I bet you have suspicions. Does she talk about other men? Find out her whereabouts when you don't see her for a few days and she texts you stuff like "miss you"; "thinking of you". She might have an ex on the side. things to consider. Why does she want to marry you? Due diligence. It beats the misery of what Joka and many others went through. You don't seem like a confident leader to me.