What to do?

There are rules, and rules are important.

And there is the group, and The Group is important.

The rules might differ a bit, depending on where you come from or what you are doing at the moment, but they follow a more-or-less steady pattern:

stay close, heal,
debuff, heal,
dispel, heal,
dont aggro mobs, heal,
buff, heal,
preserve mana, heal

Then there are priorities:

tank over ranger
sorcerer over spiritmaster

Even harder?

preserve yourself - you must not die

..even if this means that someone else will be left to die.

I follow rules. Was trained for years to follow rules. It's easy to follow rules. Ppl like you better if you follow rules.

It's just that sometimes the lines are unclear. Or the moment too short to decide. Then you save the person you want, maybe dieing in the act, but you did save him, and that's so more important.

Way across town.. where your rules curve.