How we cite our quotes: All quotations are from Deadpool.
Quote #7
AJAX: I've cured you, Wade. Now your mutated cells can heal anything. It's attacking your cancer as fast as it can form. Yeah, I've seen similar side effects before. I could cure them, but where's the fun in that? Now, I'm gonna shut you in again, Wade; not because I need to—because I want to.
See, Ajax is what we'd call a sadist. He enjoys watching Wade suffer. Maybe it's because he can't feel anything. Maybe it's because he's a terrible, awful mutant man.
Quote #8
WADE: No way. I'm not making her life as ugly as mine.
Throughout the movie it's unclear why Wade thinks his presence, post-mutation, in Vanessa's life would be disastrous for her. He seems to suggest that it's solely because he's not as easy on the eyes as he was before, which is a pretty insulting assumption if you're Vanessa.
Quote #9
WADE: Better find her fast before numb-nuts does.
WEASEL: How do you know she's in here?
WADE: Because I'm constantly stalking that fox.
This is what we're talking about when we say that at least some of Wade's suffering is self-inflicted. He's torturing himself by following Vanessa around and coming this close to her without ever talking to her.