I`m so indecisive, not sure what to do? HELP?

I don't think that indecision is your problem so much as self-control. You are definitely right about how you shouldn't be doing anything w/ him. Clearly he's after one thing from you - which is not the most flattering compliment in the world. Just end it and find a boy your own age who will appreciate you and actually want to have the honor and privilege of calling you his girlfriend.