It would be very difficult for me to actually look for someone new. When u care for someone deeply and the emotions are real there are lot of memories thoughts incidents songs which can keep coming back to haunt u making it difficult to look for someone new. And anyway can another person really take the place of the loved one lost?
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I haven't yet formed any kind of relationship that leads to an unwarranted break-up. I am very careful in such matters, because for me love blossoms only once in life and for only one person. And for any reason, if it gets severed, I can just live my life with reminiscences and never seek yet another 'someone'...!