This is brutal, but good that it happened earlier than later. I was in a relationship for three years once when the male best friend of my partner began having depression issues, which often sent my partner to go and comfort him, which I encouraged and allowed.
I think her empathy got the best of her, and although I still doubt the guy's sincerity, they eventually fell in love through this time spent together. Problem was I wasn't made aware until a few days before I was to fly to France, where this guy had already left Cambodia before me and was living in the apartment I had rented for my girlfriend and I.
It destroyed me for at least a year, but I think in the end the guy did me a solid. I hope the right lady comes along for you my friend, but I think you dodged a bullet on this one.
Thanks for the comment Justin, and for sharing your story, which is very harsh on you indeed. Happy to hear that is all behind you now!
It is how I feel about the situation on this side, but to remain who I am I'll take the side that he wasn't aware what he was doing, and that her undeveloped emotions got the better of her.