I thought it was a very elaborate fuck you.
I invite you to participate in something with me that I am unable to participate in. That is how much I actually care.
I can't fathom this interpretation? Odo values his time and is a very methodical thinker. How would he get any kind of spiteful satisfaction or feeling of oneupmanship from wasting his time listening to Garak prattle on with pretty lies just so he sit and there and not eat in front of him? IIRC, Garak has even told Dr. Bashir, the breakfast isn't important to him, the conversation is.
Nah, I think Odo, gained a respect for Garak's complexity and wanted to share time getting to know him (Well, as well as one can get to know Garak through the lies)
One Day I hope to be the Man my Cat thinks I am
Where are we going? And why are we in this Handbasket?