Am I "mollycoddling"/pestering?

Yesterday, my boyfriend worked a late night shift and sadly only slept for two hours. We'd planned to spend the day together, which we did but I had no idea until mid day that he hadn't slept!! Otherwise, I wouldn't have met with him so he could get some much needed rest at home.

So around 6 pm, he starts to shut down, I can see that he's tired because he's closing his eyes and not talking to me (perfectly reasonable reaction to having not slept). He was happy to rest his head in my lap so I could scratch his back instead but I didn't want to sit in the car not talking about anything, just scratching his back - he had been extremely disrespectful throughout the day so I wasn't feeling affectionate.

Anyway, we went for a walk to wake him up a little but it wasn't working. He was grunting and sighing and giving short answers in response to my attempts to start a conversation to keep his mind active until I suggested he go to bed and sleep.

WHY did I do this? I explained to him - we'll see each other tomorrow, we can start fresh and have a better day with you well rested. It's not a problem, I won't be offended.

He was angry that I kept going on about him getting rest. The way he spoke to me was horrible so I went home but I don't understand what went wrong? I know some men don't appreciate being "babied", could that be it? Or something else?