<human>: I had an odd relationship with this dude, on and off. I've known him for 1.5 years or so. I could never tell if he was fucking with me or if he liked me (if so, then he liked me a lot). 

Anyways, he moved a few months ago and came back to visit. He hit me up and we hung out, everything seemed fine. I felt like it just wasn't there and assumed he felt the same. The next day I saw him and he gave me the cold shoulder. At the time I thought he just wanted to piss me off, but my friend said because he could sense I didn't like him the way that he liked me. 

Anyways, he left town and I will never see him again. Should I shoot him a text saying that I wish him the bet of luck with his life and that I care about him or something like that. I'm not in love with the guy, but I do care about him and wish him happiness.

Provide a brief overview of the text.
<bot>: Should I message this guy that I will never see again that I care about him and wish him the best of luck with life?