Wei Wuxian relaxes into those arms. Lan Wangji has a calming affect on his that he can't deny. He listens to those words as the man offers to help him through the lust potion.

"I think it's pretty obvious I do..considering how I behaved at at the pool." He doesn't know why it's so hard to just say it. But perhaps he just doesn't like the idea of being rejected. Which clearly isn't going to happen since Lan Wangji has said he would help him.

"Last time you drank I kissed you..and I shouldn't have. I took advantage of you being drunk. You responded by knocking yourself out..so obviously you didn't want it and I shouldn't have done it. I don't want to make you do something you don't want to do just because it would help me."