So it's basically "The only reason I'm not dating him is cause I'm too tsundere to confess" trope...
I hate that trope... I mean, I love tsundere... but... when the only f***ing reason you aren't together is cause you're tsundere side is getting in the way of your feelings getting through...
Just act tsundere AFTER you date... sheesh... you know MCs are too stupid to know that you're just being tsundere...