Over the last few years, I've developed feelings towards a close friend. I have been with my DP for 15 years and I've tried my best to keep myself focused on this as I don't want to lose my relationship. It doesn't stop my fantasising. The CF and I will unavoidably cross paths so I can't cut him off all together for no reason. A friend recently advised I should just be honest with him and tell him I want to end the friendship so I can concentrate on my relationship. What do you think?