When a girl texts you "Hey we should grab coffee sometime next week!"?

The older you get, the more female friends you will have. Just treat her as a friend, don't act all weird. Go out, have coffee together, eat some meals, watch some movies. Maybe she just needs a friend. And if she is pretty, just enjoy her company! Don't think so much at first. It probably has no meaning. Later, the more you start to hang out you can tell her you like her and just say you'll be happy to be her boyfriend or just remain friends is cool. I have a lot of female friends, no real meaning other than friendship.

I agree with JJJ. Don't overthink it or think she's into you or wants to sleep with you. While all that may be true, she may just be trying to be friendly and enjoy the short talks you have had in the past. Don't make such a big deal out of it. Having coffee with someone is a safe way to get to know them. There's no pressure of a dinner date or anything serious.

It's a way to get to know you, regardless of the reasoning she has, whether it's needing a friend or thinking you might be someone she could see herself with. Just go out and talkas friends, she will make it obvious of she is into you.

I would assume that she just asked you out.

No idea just go with it.