How I confessed

So, he is my co-worker. We had spark or I thought so, I don't know. I really don't. And one day I just told him that I like him.
Yeah, not exactly "one day", more specifically 10th of December. And I didn't "told" him. I just wrote in messenger and block him.
How mature of me...
And now it is 24 July. He still acts like nothing happened. We are not friends, we do not talk much on social media like before, but we still talk. And when we talk, it is still about his or mine memories, dreams and stories - you know, things like you wouldn't tell random person.
Do I love him? Probably. Does he even like me? There is a chance. But what is the problem then? Is it because I'm in wheelchair and he thinks it big responsibility and he can not handle it? Or he is just not interested in me? Aghhh, I really want to know...