Well, it seems like you got her really interested in you, based on the way she's been responding in the texts. I mean, the way you described it, you made it sound like you guys didn't really talk before and you just knew her. So....if THAT'S how the convo is now.....she's definitely into you and I'm SURE she's throwing you some major IOI's when you see her in person.
I think at this point, she's just waiting to hang out with you, so throwing a basic "i'm gonna be hanging out at _______ with some friends, you can come hang out.....if you're cool enough

" would be good enough. I feel like there are very few ways for you to go wrong at this point, so just do the tried and true method of asking her to come hang out with you at some place you're gonna be going to anyways....having fun with or without her. She's gonna want to come.
As for turning the texts into a phone call, you could try the thing you said. That would probably work well. Or you can go with the theme of your convo and tease her about the sheets thing or cuddling thing. When she answers just be like "yeah, so i've taken back the bed and the sheets. No more cuddling for you! I'm gonna have to talk to you about working out the divorce" or anything you wanna say that can lead right from the text convo.
Don't worry man, you're doin fine.