Clown commiting death by zoas?

[Seafan]

In the last couple of days, my clown has decided to try to take up residence in my zoas. A couple of days ago I first noticed fairly big black marks all over his body. First thought, OMG what horrible disease is gonna wipe out the tank, looked at other fish, nobody else affected. Quickly googled to find photos of other clowns with same marks, zoa stings! I mean REALLY! I just got rid of 3 anemone's a couple of weeks ago as no interest was shown what so ever. Still have one gbta, but no interest. Have many other things clowns use as alternative torch, frogspawn (2 varieties), but no he is in love with the pretty little flower patch.
Has anyone else's clowns ever done this? Anybody know if it actually can kill him? Will the sudden infatuation wear off? I mean he is starting to look seriously bad.
If this keeps up I will have to change his name to Jacques, as he now looks like a waiter sporting a sexy little black mustache.