how to fix this?

Sounds like your relationships could be in a tense or stressful state at the moment. Sometimes if there is no easy solution, it seems like the best thing to do is nothing. Not to react, not to make any choices, just continue on like nothings changed or effected. What seems strange to you in the context of new events, could just be hyper normal activity from her. Hoping that if she doesn't do anything different, or make any waves than nothing has to change.

But idk what's up with her personally, but I thought you could use a less dramatic take on what could be going on, based on what you described.