this is what you should say
"look I know I fucked up bad I just like you. Yes, I'm saying it now, I like you. I know you are reading this. I like your bangs, I like the music you like, I don't care of that makes me a creepy guy or whatever. Honestly, forgive me? I would love to take you out some day. Do you forgive me? I'm sorry. I can't change what I've done. I'm just a fucking screwup"
worked pretty well for someone else