This girl and I usually hang out with a mutual friend of ours. We have a lot of fun and flirt a bit and I have gotten some IOI's. We were planning on hanging out with our mutual friend tonight, but the mutual friend may not be able to do it after all (and we always go to the mutual friends house. So I was thinking about sending this text:

"(mutual friend) told me she's not sure if she can hang out tonight anymore. She'll let me know in a bit. But i have no other plans yet, if you wanna have a playdate with me instead lol"

Also, it's important to note that the girl is a mom so she has "playdates" with the mutual friends son. Thus the "playdate" reference in my text.

What do you think?

personally i would of gone with
"Hey, (mutual friend) cant make it tonight. but i still say we hang out. Get you at 8? wear somethin cute."

but thats assuming this girl is attracted to you.

Agreed.. Short and simple as it should be. But like he said only if its obvious shes interested.