[ Bless Connor for sticking his neck out to be Prompto's personal Life Alert in his time of stupidity... ]

You...you sure? I don't wanna keep you from something else.

[ Since Connor presumably was on his way somewhere when he stumbled upon Prompto. Still, he wouldn't mind some company — and a second pair of eyes. ]

I wanted to check out this whole cray-cray overgrowth sitch we're in.

[ Which...also explains the pumpkin that he thought was a cat. ]