Numb and confused. No idea what to do

[caniusethisusername]

Apologies for the long winded post but need to give some context.

I’m in a same sex relationship and have been living with my OH for 10 years. I’ve. It been part of her mortgage but have given her money per month and also contributed towards the house in terms of improvements and maintenance.
Our relationship has been rocky over the last year and recently has been worse. I’ve made arrangements for us to go to couples counselling as I wanted to ensure we could talk without arguing.
We talked about me not wanting to be renting for the rest of my life a few years ago when my circumstances were different.
I’ve now found out that she’s converted her house to a buy to let which means we need to leave in 4 months. When I raised it with her she said I wanted this 2 years ago and she wasn’t able to talk to me so she decided to do this.
I understand this isn’t my property but I did think it was my home and was expecting to have least been told she was going to do this.
I feel numb and totally betrayed. She says she would like me to be with her but I’m totally confused.

This isn't a proper relationship is it? She isn't taking your needs and desires into account. She sounds quite selfish. Which she has every right to be but it's not really partner material is it?

Regardless of gender, a person who will literally pull the rug from under you, take away your home without discussion, after 10 years together, is not a partner. Would you treat the person you love that way, and be so cold about it too?
It sounds like you have attempted to work on things between you, but this seems like a very clear statement on how she perceives the relationship. You have one life and you should squeeze every drop of happiness you can of it, you deserve better.