My Taiwanese teacher said before some years ago... that this kind of 'love' is the most hardest thing to 'renounce'. He says that to solve this problem is not by completely getting rid of all the love and feelings for her. But it is allevating this smaller/selfish 'love' into a greater love. If you get what I mean

Let this love reach out to all the people, and not just stuck on one person and your own personal desires and interests and attachments.
Anyway both quotes from above contain important teachings on Emptiness
