Trouble with love

Takagi-San has a bad habit of teasing Nishikata a lot, even going so far as to admit that she can't help it, but what effect will this have on Nishikata? Will he even be able to believe her if she were to say that she loves him? Or will he just think she's teasing him more? What ends would she have to go to in order to convince him that her feelings are real? And how long would Nishikata be able to deny that she has feelings for him?
Includes honorifics