The Asexual episode [spoilers]
SPOILERS.
The Asexual guy wanted friends, that's fine, but he was confused and needed to sort himself out before befriending other people.
What he needed to do was to be 100% certain about his sexuality, then he would know where he stands with himself and with other people, then once he's secure in himself, then he could befriend people and there'd be no reason for any lies.
But because he obviously hadn't dealt with his sexuality, he ended up wasting his and other people's time and hurting other people in the process.