Is it normal i should be single so i don't hurt people?

I'll try to keep this short since I have a habit of getting a little too wordy, I'll do my best.

I've been with my current boyfriend for a year now and I thought I loved him but the past week or so has made me unsure. He didn't do anything to me, nothing has changed. He's upset I haven't been over to see him lately, mostly due to work but I could have stopped by if I wanted to. I usually do go out of my way to make time for him, but recently I haven't and he notices.

I'm not sure why - like I said, he didn't do anything to me. Did I just not love him to begin with?

Sometimes I question whether or not I know what love is. I don't think I do. We have so much in common but the one thing I feel but there's some things that still bothers me...like the fact that he still won't take his shirt off around me because he's self conscious - I understand that and I don't want to force anyone to do things they want to do, but it feels like it's putting a wall up against me from the fact that it's been a year and still, nothing.

That's just one example. I'm trying to keep it short but eh. I don't want to hurt him. But I feel like emotionally and mentally I've checked out and I don't know how or why.

I don't want to hurt him but I don't feel the same way anymore. I'm not sure what to do, I feel like such a shit person.

He's brought up things like marriage and is having me help look for a house for us and I'm afraid! I love him, but I don't want this yet. I don't want to settle down and feel any more stuck than I already do.

And before you mention it, yes, I know I have to communicate with him - but how can I, when I barely understand the problem? The root of my issues? I barely understand what I'm feeling but I don't want to hurt him.