He Calls Me "Hon"

Life is whirling around me.
Friends who commiserated with me on datelessness, lovelessness and childlessness only a year ago are now married with fresh pink babies.
I am immensely happy for such friends.  It is WILD how quickly love can sweep you up, and in my friend's case, give you all you ever dreamed of.

Meanwhile, I am dating and also still spending time with McTwitchy.   We do greatly enjoy each other's company.  We are not dating but we are dear friends.

Last week, he drove me to the airport as I left town to spend time with my family.  Last night, I returned the favor.  I arrived at his house while he rushed to complete important business emails.  I was suddenly struck with a headache and fatigue.  Mysteriously.  
We had plenty of time, before his flight, so as he typed rather frantically I found space on his sofa and covered my eyes.

From the other room, he eyed me and said, "Do you feel okay, Hon?"

Hon?  Honey?  Where did that come from?  Ah yes, he did call me hon a few times while we dated.  Mainly when he complimented me on dinner.
But we've been NOT dating for about seven months now and he calls me hon?

I am not one to reject a term of endearment.  If he wants to call me 'hon' that's fine.

What IS funny is, when he called me at work last week, to verify our airport plans... he rang my direct line and didn't introduce himself.  I fully expected it to be one of any possible number of co-workers from a distant office and was understandably confused when the person on the other end of the line didn't identify himself!  When I finally realized it was McTwitchy, and acted a bit shocked.  He didn't seem to understand why I didn't know it was him (I'm there to work, most callers ID themselves) and then joked, "It's that OTHER guy you've been dating."

I didn't bother to tell him that I AM dating other guys.  (the intention has already been established - months ago)
So with the "hon" impact, I'm wondering if he thinks we're just in a holding pattern.
Or, it's just a term of endearment between dear friends.

Sometimes, even in dating relationships, pet names don't mean anything anyway.