Yea women can be pretty unstable after breakup. For my ex it was an insane emotional vortex of keeping you on the hook for emotional validation ("are you still interested in me, just in case?"), contacting all her friends and simps for emotional support, spying on my social media activity through her friends, searching for other guys for rebounds/easy wins with chumps ready to buy her roses, posting thrist traps/new ig posts, dying/cutting their hair, shopping spree, writing to me a formal declaration of the end of our relationship and how she learned so much from us but then pinging me that she was insecure if I was seeing other girls already and then somehow being turned on by that possibility and then trying to have raunchy phone sex with me despite not wanting to meet with me, etc.
Basically I wouldn't read too much into it, it's a black hole and total complete waste of time, if you participate it, it can really screw you up because she's just trying to suck away as much "life force" left from you, stroke her fragile ego that you're dependent on her or pining. Because the last thing she wants to her and that you've moved on and that you're better off without her. No use to try to understand her behaviors as she's operating on coping mechanisms/grief.
I got a little stressed just thinking about the drama I got involved in and wasted time thinking about post-breakup when I could have just been chilling with a new girl. Like, so many new girls and so many ways to start a new love life, why try to revive a ghost from the past?