Update . . .
I have been purposefully working away at another office for 7 weeks plus to try and distance myself from the situation. Unfortunately, this hasn't worked and still I still think about her daily . . .
Maybe I'm better off going back, as at least I stand half a chance of something (even little) progressing?
I personally feel that she would never be interested in me anyway, and I shy away from the whole situation which makes me feel so frustrated and angry with myself.