I can't believe you just posted this. I have been going through the very same thing for the past two days - and I have no business missing them either not to mention it's been 4 years since we last spoke and I am happily married. I took out my IPod yesterday and the music started it for me
What I do know, as this isn't the first time, is that it will pass as it always does. I've learned to just let myself feel it. Some people leave a heavier footprint on our lives than others.
I hope you have a wonderful day and weekend. ((Hugs)) from me.