I just don't think I am strong enough to confront him, and I don't want to see him squirm. I will keep an eye on him online and not let him get too close to my heart.
Lizzie, I'm going to be harsh. This seems like a rubbish strategy. What do you hope to achieve by it?
You are hurt by this, so it's too late to protect your heart. You're rightly hurt by it as it's crappy, unexpected behaviour.
It's been going on for six months, he's now moved closer to you. The natural order of things is to see if things intensify, not start pulling back because you can't trust him. If you need to protect yourself then discuss to see if it's fixable and the barriers can safely come down again, or get rid.
I'm a big believer that people will treat others as crappily as they are allowed and you are giving him carte blanche to dick you around when it's clearly not what you want.