Because he didn't make a post on a forum you have assumed that he doesn't like you anymore. Men usually only make an effort in the first few weeks of a relationship after they have hooked you things slow. It's harder for men to express their feelings. Usually can only be done with a beer in one hand, a kebab in the other and in front of an oversized television showing sports of some kind. Even then all we can muster are grunts.
You shouldn't avoid arguing either. That isn't going to help the situation. It leads to confusion, as you are experiencing now. Obviously when you are arguing avoid saying things that will damage the relationship ("I was faking it" is a a big no no).
Chances are that he still does like you but is very mad at you right now. Tell him that you are sorry and that you still want to be together.