I'm hoping, just like how the girl react, they won't get disgust or anything, I mean shocked or weirded out is still pretty normal reaction I would say, some people just need to digest new information more longer than other ;-;
I'm assuming cuz we saw his parents now, Garam also gonna meet them soon.... Or at least they'll find out about it.....
Oh and the ex show up..... Idk if that like a preview that he'll show up soon, or just a nice closing arc for Garam and he'll have his own subplot or some things, hopefully nothing too messy..... They're ups and down is stressing me out..... Let them be happy....