Complicated

Theres always no communication

Mostly its Kurama.

Kirishima has been telling him he loves him, waited for 3 years and even stalked him. Isn't that a very obvious reason that Kirishima is in love with him?

Being dense is sometimes cute but more of that and it looks toxic and hateful.

Actually it was already too late when hr asked him to go out with him since the 'rape' already happened and uke was also raped again. I guess it really has a huge effect on him