You can still manage to meditate Albel, it's not physically impossible right?. in that sense, you can attempt in the least turn those emotions into energy that can be used for other things.. It's worked for me.
But I'm sorry for your heartache man, and i can feel your pain as I've gone through it myself. but true love is a distraction after all man >.> I still wish you luck chasing after dawn, and can say fight for her either be sly like Alex mentioned or just be persistent and prove her wrong.