I've had a similar experience except I never went to where she was , things were as serious as they were with you, and mine ended up being married. Although I'm not entirely convinced she told me the truth about that. Too many loose ends and things she told me that just don't add up. She told me she was married after I had asked her on several occasions if she was seeing anyone and she said no. I would consider married to be seeing someone. How about you?
This is why, if you ever see me in chat, I have a message in my chat box that says, "No private chats from married or engaged men."
I am often dismayed by the fact that for some reason, that seems to be what I attract.