tbh I was stuck on the last bit from around April or May all the way till after the fireworks festival, dunno if that's a bug or because of his past and personality but when i think about it Toru confessed to me but i don't think \I ever got the choice to confess to him
I couldn't get to confess to him either; I had to wait for him to confess to MC-kun which is why it took quite a long time. For the other two routes I've taken (Tocchan's and Shuu's), I had the option to confess to them rather than wait for them to do so. Idk if it's a bug, if it's just meant to be like that, or if I missed something.