Dank je wel Mabel and thank you Sally.
The neighbours came at the door yesterday and told me that she went back almost an hour after I took her back. I wasn't allowed to stroke her or anything.
So the dreading moment was there yesterday. They don't mind having her around, how much it hurts that she's happy there and not with me anymore. Thinking about it makes me all tear up again. I can visit her whenever I want, she really wants to stay there.
She was in the 9 days that we were in Amsterdam visiting their garden and sat under a bush. They saw that she was there in the cold and started to feed her. So that makes sense as to why she decided to not to come back and started to get fat without eating any food with me.
I couldn't got myself to the place yet that I can give them her passport and her chip number etc. Thats too much for me to handle at the moment. But I will get there, I have to for the sake of Spetter.
Anyways, I have to start dealing with the fact I lost my cat after 12.5 years and I will try to look at the positive things at her memories and the fact that I can still visit her.
She has made up her mind and we aren't meant to be.
Will miss her loads!
Thank you all for your replies and responses and hugs! I'm grateful that I could share my story with her here

xxx