She sounds like an acquittance with whom you also run a business (not sure why). Not everyone you associate with are actually friends. Although some people refer to everyone they know as friends. So maybe it’s semantics

First of all I’d not mix friendship and business. Don’t do business with friends.

Second of all if you two don’t see each other and don’t regularly communicate, then it’s not really friendship. It doesn’t mean you can’t keep in touch, just don’t need to call it friendship

If she doesn’t pull her weight with these classes, then she shouldn’t have an equal pay

Just because she says she dumps all these guys, it doesn’t mean that what really happens. Some people who claim to be single by choice are single because they can’t find the right person (and yes it’s hard). If and when they meet the right person, their “single by choice” status will be gone. So take what she says with a grain of salt.

Just because she has time for full time job and dating, it doesn’t mean she has time or desire to make web pages for classes. Having said that, if she has no time for that she should not run a class and you shouldn’t do business with her

This isn’t the first time I read a post about people rekindling old childhood friendships via Facebook. As usual it turns into either unnecessary drama or isn’t sustainable. People grow up and build new lives and trying to pick up where you left off years ago rarely works. Not a high school anymore. I’d start making new friends instead.