I broke up with my ex 10 mths ago. During these 10 mths, we had many ups and downs. I tried to be accommodating to his hotness and coldness, to the point where I couldn't take it anymore. I know I have to move on etc, but my heart still fell in love with him. Recently, his colleague who doesnt know that we used to be together has shown interest in me. I did not reciprocate the feeling, because I still have feeling for my ex though now we are no longer in talking terms.