Daphne: Well, if you think so much of her why don't you ask her out?
Frasier: Well, we agreed we wouldn't pursue things. Frankly, she hasn't given me any indication since that she's even had a second thought about me.
Niles: Added to which, if Frasier did pursue her and she rejected him, he could hardly rationalize it by saying she doesn't know what she's missing. She would know exactly what she's missing, she just didn't miss it.