my group is accustomed to being healed constantly now... but i don't really like to play ANOTHER cleric now.
So don't. "Heal Bitch" is not a necessary party role, and certainly not a PC role. It's a job for an NPC or a wand or potion.
I think your party needs a wake-up call if they've seriously gotten used to being healed
constantly. I recommend you try being more of a battlefield controller and debuffer. Tell your fellows "Look, free ride is over, wise up or suffer. I will make it
possible for you to take much less damage so you don't need to be healed constantly, but it's up to
you to take advantage of it." You can save a ton of incoming damage with spells like Slow and Dimension
HopShuffle, or even a Summon Monster or Undead spell that's too low level to have a direct effect on the fight, if you block charge lines with it. There's a lot you can do to save the party's bacon without having to devote all your time and energy to putting them back together when they're getting taken apart for being stupid.