hallo cryostasis, I live in Berlin, Germany, and your question first of all touches me cause I lived through quite the same. It ended with never daring to see HER againcause the feelings still tend to attack my marriage, after 10 years,understand? okay, here is what I think, and first of all we should look at the options that may me hidden as reasons behind it.
1st: it may be that the two of you are destined to suffer deeply until you overcome the fears of losing parts of your identity when really going into connecting with someone else. in othter words: you are being put on a TEST.
2nd: it may be that one or both of you symbolize for the other something they want - but as well deeply know they need to get rid of. the contrary of first. in this case love is rather a path into something, well, like heavy drugs, H, you know? Nice, but lethal.
3rd, you have to reflect on - besides physical attraction - what your positions in life/society/job/study etc...are. Are you on the same level? Or would one of you by being a couple be staged on a lower level. for example: You are a teacher, she is a student of what you teach? understand? or, vice versa. It also depends on your both's AGE. There is a time in life, short but fierce, when falling in love is a sweet result ONLY of our original being, of virginity and openness. When you get older, that changes: Falling in love changes it meaning -it means: falling in the construction of your destiny, home, children, retirement, etc. Of course, there are excepitions... well, consider these arguments, maybe one of them gives you the "smell of the truth". give me a reaction, and maybe more info- see you, Niko!