I'm sorry you are still having problems with Ezio's over the top displays of affection.
From your description it seems your budgie girl is developing an obsessive behaviour, if she has truly started to regurgitate on various items on her cage and she spends most of her daily time in this activity.
This in the long run will have a negative impact on her physical health (weight loss and increased chance of having crop related issues, such as crop infections).
At this point, it would be a good idea for you to completely rearrange her cage and replace all perches she has been regurgitating on (and thoroughly wash these) for different ones. The same thing goes for toys, you can place a couple of wooden chew toys to see if Ezio busies herself by chewing on them.
You should not give her access to mirrors or anything she can see her reflex on.
No nesting areas should be available, either. Reducing the amount of daylight hours and the protein on her diet could also be helpful in terms of keeping her hormones more under control.
It would be good to increase the daily amount of out of cage time and to set up playful activities where your Ezio will spend her pent up energy in.
Clicker training could be a very good option to incorporate discipline and a new focus for Ezio.
With the right tools and skill, it's possible for you to correct Ezio's more deviant behaviour, and for this there will have to be a commitment on your part in terms of spending the daily time to work with her. This is something that must be done in a consistent manner.
You can start by checking this link: https://talkbudgies.com/taming-bondin...-training.html
For the detailed information, check the Taming and Bonding section of Talk Budgies.
You can also get the professional opinion from your trusted avian vet specialist on how to deal with the obsessive regurgitation.
Best of luck with everything.