honestly i just want to see how long this can go on about... this manga must be trying to take the record from nisekoi at this point XDD
there is no possible defense for this guy at this point... he has so many options, and he just decides on nothing...
he can just be straight with ruka, dump her ass and try to actually get with shizuru... he can try to forget about shizuru by cutting her off his life and try to be happy with ruka, he can even choose to dump both these 2 and try to aim for the other cute girl who has that shyness problem which name i even forgot at this point... heck he can even try to just go back to be a mami's puppet and be used by her which at this point would be less pathetic...
IDK man ive been trying too hard to actually justify people's motives and stuff, but there is a point you just reach and say: "whelp i guess im done, i cant do anything anymore".
not to mention what kind of helpless dude cant even apply sunscreen on a girl without freaking out... i can even try to "understand" he not wanting to touch her and give her more hope because "he likes" shizuru but... cmon bruh... its sunscreen, not lotion to make it slip in easier...