So I constantly have problems where a DPS/tank and myself(always a healer) are in the same spot. We get attacked by enemy players and once the DPS/Tank get below 50%, they seem to always like to jump off the edge to escape, right in the middle of my cast to heal them.....or right before I use a instant healing spell.

Then I become the focus of all the enemies and am almost never able to escape easily....

So please, if a healer is near you and you need healing, stop escaping. Protect the healer and let them heal you.