Do you know how much ML makes per month? Everyday can earn how many times $50-$100? She will not be bothered by you moving on to other girls. By now, she should have seen everything she needs to know in her industry.
I know of a ML girl with 6 condos in Vietnam. Our sperms is like the cement for her condos.
You think she will be bothered you spend your $50-$100 extra fee on someone else?