I think if it were me, I would definitely do it directly, and I would choose to change my fitness instructor directly. Of course, I won't use my tofu as an excuse. I will find a better fitness instructor in advance, and then tell the person in charge of the fitness club: I want to work out with my friend, and her coach is XXX, so if we want to work out together, we have to switch to XXX. If the club is handled well and I change my coach smoothly, then I will continue to exercise in his club, otherwise I will choose to leave.
I think people in the clubhouse have a certain understanding of fitness coaches, and they also know which coaches are more reliable and which coaches are prone to accidents. Therefore, as long as you propose to change coaches, they will have a bottom in their hearts, and wise club leaders will handle this matter quietly.
Every club has good coaches and some are unreliable. However, because many people are keen on fitness now and there are not enough fitness coaches, some clubs know which coaches are unreliable, but they have no choice but to use them first because of the lack of people. Therefore, when a woman encounters this kind of thing, she must find a way to get rid of this person and don't let his bad habits extend unscrupulously. As long as everyone resists, I think these people will have no place to live, or they will definitely correct their problems in order to survive.