I have to say, I would normally have said no, or maybe one would be considered lust, which is obviously not on the same level; but if this year has taught me anything, it's that anything can happen. For those of you not familiar with my dilemma this year, someone from my past came back into my life this year and basically told me that even after close to ten years, she still had the same feelings for me. I had written her off years ago because she broke up with me, but after hanging out with her a few times, I realized I still felt something too. BUT, I was in the middle of a relationship that was having troubles at the time, in spite of that, I couldn't leave her. I was between a rock and a hard place and could not choose between the two. Fate, as it can do, stepped in and the girl from my past moved to Australia, I haven't spoken to her in about six months, intentionally, so I dont have t go through all of that again, but I second guess myself and think about it almost every day. There are days I'm totally glad I ddin't do it, and there are days when I really wish I had.
I know I'm taking really long to get to the point, so here it goes: YES, it is possible, but I think it can only happen if a deep relationship had already previously existed, it takes time to develop those feelings, and can't happen with someone who's new in the picture.