Guys I am shocked and hurt. I need your advice.

So like, this friend, I wont name him, i havent seen him in a long time. When i saw him I welcomed him back. He told me, "Youre sick in the head." I dont know what he means by that. Yeah sure I am eccentric in many ways and have an unique personality. But does that really make me sick? I mean Im just as human as the next guy. Maybe a human with a path of life that wasnt as rosy and cushioned as the rest but what makes me ill. I have been thinking deeply about it. You know, sometimes i put up an emotional wall because of things like this. I give my heart, and I get rejected. Not because I'm me, but because Im not like everyone else. Like literally, im crying so hard rn. What do you guys think?