How should I respond to this comment this guy made?

[•♥Kimberlee.Katastrophee♥•]

I was DMing (on Twitter) this guy I hooked up with a few weeks ago. We have been trying to hang out again but never had compatible schedules. Anyway, we were talking about how it's been a while since we saw each other, and he says "Thanks! I haven't seen you in so long I forgot what you even look like- I just remember I liked what I saw! "

I'm not sure how to take this because it is kind of insulting but I'm not sure if he actually meant it to be insulting or not. How should I respond to it?

[Mister Spades]

...I don't even see how that can be taken as an insult.

[Al Capone]

good grief

[Melco]

How is that insulting?

[Ben]

I think it was a lame attempt at flirting with you.

[gentlelawyer325]

it doesn't look like a insult =P

[Arrogantmeal860]

ill clear up my schedule for you.

[Victoria]

I don't think his insulting you he is complementing you.

[Super Awesome]

It's a compliment, but he is just a little retarded.