"oki?" i wasn't talking specifically to you? you don't need to be weird about it. (also sorry if the comment you made wasn't meant to be negative, so if i took something the wrong way i'm sorry!)
i'm assuming you don't like this person back given the (very little) context i have. if that's the case, just say you don't like them back, and that if they are actually in love with you, they would understand.