love is hard

i like him, but he doesn't show any signs of liking me. we're good friends, and we'vebeen walking to school together since the first week. He offered it, so i thought i should be polite and accept, since id have someone to talk to. they say that boys like to tease girls they like, but isn't this far too much? he knows i hate sudden loud sounds, but joins in the teasings. hes like a light switch, ykw i mean? sometimes he partakes in the teasing, sometimes he doesnt. its confusing. love is too confusing. ive experienced this too much. i like him, he doesnt like me. i like him, but he likes someone else. love is hard and confusing. should i just stop loving for good or give this another chance? i crave for love but i reject it. am i bipolar as well or what?