Looking for a manga

I only remember it being a yaoi and only one of the plot lines. I think I remember them being college students with both of them in different majors. One of the guys (let's call him A) has a gap in his looks and personality. A looks like a Playboy that doesn't really consider other people's feelings (I think if I recall) but in actuality he is a sweetheart who is thoughtful and kind. He also specializes in creative writing and loves to write his boyfriend (let's call him B) wonderfully written love notes. I think I remember them meeting by an online college tutoring form??? Or maybe it was normal texting??? Anyway, they didn't know who the other was. A messaged B questions about computers or something because B was a computer major or something. I think B thought A was a girl at first because of the way he wrote his messages. B was surprised with A's personality because his looks don't match it. B thought A would be a self-centered ass.