Am I crazy or is he creepy?

I can't tell. I was just sitting there, minding my business late in the week, trying very hard not to beat my head against my keyboard, when an IM popped up on my screen.

He says:
Hey! Whatre you doing?

She says:
whipping some stuff out before I get out of here
and then tomorrow's FRIDAY

He says:
Yes it is!!! WOO HOO!!!!
big plans this holiday wekend?

She says:
Oh yeah
gardening
cleaning my floors
big stuff
Actually I might spend a night in a cabin on the Waccamaw
and do some kayaking
so that'll be good
Oh, you know, and being pious, of course
You?

He says:
LOL>...of course!!!
well...I cleaned floors last weekend so thais done...YEAH!!!
a little golf Frdiay and Saturday mongings...

She says:
Oh nice

He says:
and I do have to clean out the garage one day...BOOOOO

She says:
I hate chores

He says:
me too...

She says:
Why did I think they'd go away when I grew up?
I think I need to have kids. Make them start doing some dishes.

He says:
they just get more and more and more

She says:
srrsly

He says:
we need FUN in our life...hhhmmmmm

This is where I start to feel squeamish. I mean, OK. I like fun. But that long "hhhmmmmmm" felt like a hot breath across a phone line, right? That's not fun. It certainly ain't sexy. So I tried to keep it light and jokey. I figure, can't we all agree that work sucks, eh? Eh?

She says:
Oh, what, like work isn't FUN for you?
It doesn't bring you enough JOYJOYJOY?

He says:
there you go again..scarcasim...I LOVE IT!

She says:
I just can't help it
I'm glad someone around here appreciates it

He says:
I do...let it FLY!!!

She says:
ha
I still have to figure out different types of humor.
Not everyone thinks I'm hilarious, apparently.

He says:
i find you hilarous and interesting...

I don't want bald, married guys my dad's age to find me interesting. Especially if they can't spell for shit. Again, I retort with a joke.

She says:
Me, too!
That's why we get along

There's a pause, so I think it's over. Oh, no.

He says:
so.,...
tell me something unique

Um, what? Is this how old people flirt? Is he that bored? I hardly know this guy. He works in a different building. (I think his WIFE works in my building though.) Are we all of a sudden on Match.com? I play it safe by playing stupid.

She says:
??

He says:
lol
see...you haven't figured me out yet...I am haviong a tought ime with an outage over here and thoiught I would settle my stress by being silly wiht you
sorry

She says:
ahhhhh
I'm slow sometimes

He says:
not a problem...

OK, DIW. What is this? Am I being paranoid? Is he just so well-meaning and innocent and I'm the one projecting? Should I avoid this guy?