Why did God tell us to love our fellow humans? It's too hard.
I suppose He did it because only He can do it. It's one of those things we can't do on our own. It reminds us that we can only love others through Him.
People are hard. Even the people I love dearly disappoint me on occasion. The people I barely know irritate me constantly. I read blog posts or FB comments and inevitably someone says something that makes me want to walk away from all humanity, sometimes in disgust, sometimes just from exhaustion.
It's hard to remember I'm annoying, too. That my existence or beliefs may irritate the snot out of someone else. That God made us both and instead of being irritated by our differences, I should study them and consider what that says about our Creator, and be grateful I'm not alone in the room.
Except I often prefer to be alone in the room. One of the reasons I'm single.
Christians don't have the luxury of being alone. Jesus actually commands us to meet together often, for fellowship and building up. I know I'm ignoring God when I don't do that, and I know it's dangerous to ignore God. I'm His slave. He can use whatever means He wants to bring about my obedience.
Oh, but my Lord, people are hard. Way harder than cats, even though they're often similar.
Keep the faith.