You are more than welcome. It is my pleasure to help such a wonderful person.
I think we are kindred spirits because I agree with you 100%
You should be a cat behaviorist because you completely understand them.
They do not rationalize, nor are they capable of in depth thought or reasoning.
Everything they do is basic, logical (to them) and makes perfect sense.
In a cat hierarchy a strong kitty will always try to take over and assume the head cat position. In addition, that is always subject to changes if cat one senses weakness in cat two. Cats DO work things out in their own way and they could care less what humans (or behaviorists) think. They only respond to the energy of another animal be it feline, canine or human.
A Birman girl is like the prom queen, classy, aloof, dignified with a sprinkle of catitude...lol
I bred Birmans for many years. They like to bond with one person and give their loyalty BUT in return they want to OWN you.
You are Angels "mommy" HER PERSON and she can get quite jealous if she is faced with any competition
So, when you daughter showed up with another cat, no less, she decided she had to claim you as her own.
She took to urinating in spots where she smelled your scent. She wants to mix the two scents so you are one entity.
She felt the household energy change so she fought to maintain her position the only way she knows.
The next stressers are the hormones raging through her body when she is in heat.
The ways to stop this are first by raising her confidence. Place her high up on a cat condo. The higher she is, the more important she will feel.
Use zero odor to clean any accidents, then spray with feliway to fool her into thinking the spots are already marked.
Put a few drops of lemon or orange on the sheet and divan. Cats HATE the smell of citrus so she will avoid peeing there.
Add rescue remedy to her water:
Use positive energy when you look at her. Be sure you're thinking "I LOVE Angel! She is a GOOD, BEAUTIFUL kitty"!
Please let me know how things are going. If you have any questions along the way, I will be here for you.
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Providing a positive rating will not end our conversation, should you need me for any follow-up. Simply click 'Reply' for clarification or additional information, if needed and I will always be here for you and your kitty.