If it's a compliment then use another word! Like marvelous, or fantastic.

[Mahdi huffs quietly.] I need to do it now while it's still a little damp. [He'd taken a shower before changing into his 'real' clothes today, and then gotten all weird and stuff.] If you're going to complain, grab the comb over there and help.

[But, he goes back to his hair, humming:] You're just too marvelous, too marvelous for words...