So many have said the right things already. I will add that dogs are like children and know who is good for you and who is not. I am not saying your fiance' is all bad, but I will say that anyone coming into your life needs to respect the loving life your furbaby has had with you these past 4 years and try to fit in.
When I got Cerise I was single (divorced) but dating. Cerise never liked ANY of my suitors. Cerise growled, barked, and bit several. One day I decided to downsize and move to an apartment above my ex-husbands because I liked where he lived and we were good friends. And soon one evening we went downstairs to visit him. For Cerise it was love at first sight. She fell in love with Ern so hard that I had to watch when I opened my front door, because she would rush down the stairs to his place scratching on the door. That lead to her crying when she heard his car or voice on the phone. Seriously it did! We gradually started visiting each other more and Ern started babysitting her when I needed to go places without her. It got to the point she didn't want to leave is apt.
Fast forward two years later…we are back together moving into a townhouse this week that we purchased and are also now waiting on our next furbaby to arrive next month
He never changed ANY of the things Cerise was accustomed to and even added more that spoiled her out of this world. She is very happy. She sleeps with us, goes everywhere with us, eats with us, plays with us, entertains us, and literally was what brought us together and we are happy too.
Your baby needs to be happy as well. A Yorkie does not shed so getting on the furniture is no big deal.
