Leareth spends thirty seconds or so trying and failing to formulate a response other than 'what?' and then gives up and just shares all his thoughts:
Leareth had just been making his way towards unconfused and now he's confused again, because he wouldn't have named that as the central problem here, actually. It's difficult to pin down what 'attracted to someone' means when he never considered the question before Angband, and now any thought experiment about what he wants is extremely contaminated by stupid torture memories and fear. But - he wanted Maitimo to hold him, he looked forward to Maitimo touching him, that wasn't an experience he had ever really had before; he liked playing with Maitimo's hair and kissing him once the initial OVERWHELM, which made it impossible to determine how he felt about it really and was also stupid torture contamination that he wanted gone, was past.
He expects Maitimo is not going to want to touch him at all now, which is reasonable of him, but he's also sad about it, about losing something he had only just discovered could be a nice thing, especially right now when his life feels bereft of all the other things he used to take satisfaction in. He thinks in hindsight that he was being stupid in the taking-clothes-off case and should have held off, but he's not sure what could have helped him predict in advance that it would be different - he still kind of expects that there is a nice thing on the other side of that, which he just can't reach because of all the STUPID TORTURE, he's also sad about that and irritated with Melkor for his general terribleness in this area.