Well... He's a fucking marionette now. Went along with that whore Furukawa's whims, and now u have nothing. And let me guess, you're going to cheat with Aoi, cuz ur a giggalo too.
Wait, it's even worse than I thought. He seemed to be serious. In that case, I hope she breaks up with him and blocks his contact. Also fuck that Isai dude and send the clips to his retarded ass. Hit him where it hurts. Then egg his apartment. Knowing Ichitaka, he will realize that he still loves her and beg her to date her again, and Isai is going to pummel his weak scrawny ass, and then Izumi or Aoi are going to pick up the pieces (that is, if the manga wasn't ending in 20 fucking chapters... Can't believe they are pulling this dumb fuck shit now...)
Like brother, you have the audacity to act like this, when you've literally done the same with your childhood friend, Izumi, and Aoi??? Why are you acting holier than thou.