There's a thin line between want and need.

On the metro the other night, I witnessed the most unsettling series of events.

I find myself drawn to a couple sitting on the train. The man has his arm around his girlfriend who looks as if she wants to crawl out of her skin because she can't stand him. Her head is leaning helplessly on the window next to her as the man she's with leans in closer and closer. Her body language and facial expression read, "leave me alone," but with every grimace he leans closer and closer.

I start to worry that his affection was leaning towards aggression, so I then begin to stare unapologetically to make sure she was OK. She glances at me and I see that there was no aggression, just ridiculous unwanted PDA.

The train comes to my stop and to my surprise and delight the couple stands to get off.

(This is the part that breaks my heart).

The couple gets off the train in front of me and I watch them leave. It's only as they walk ahead of me that I realize that the woman had a severe disability and could barely walk without his support.

I was wrecked when I saw this. I hurt for her, not because she was differently abled, but because she was stuck. The pain on her face on the train was so real and I when I saw her walk away I understood why.