Dad put tiles on the walls to make it look classy, and after it was done I was embarrassed, and my girlfriend wanted to break up

I've known my girlfriend for almost 3 years, and we've always worked in the same city, and life has been okay. Back then, to win her over, I went to a lot of trouble, but luckily my persistence paid off and she agreed to be with me. At the time, to commemorate our second anniversary together, we used a down payment and bought an apartment. Since we had been together for so many years, we also planned to go back home during the New Year to get married, but the newly bought apartment had not been renovated yet, so Dad said, you two usually don't have time, leave the renovation to me, I know some renovation people, so I didn't worry much about it. My girlfriend went to take a look once when the plumbing and electrical work was being installed, and after that she didn't bother with it either. After some time passed, Dad told me the renovation was finished, and it was done very classily, with lots of tiles put on the walls, so come take a look when you have time. But the moment I walked in, I was stunned. Seeing this kind of renovation, my girlfriend said: break up! And I was "embarrassed."

This is my dining room at home. To make it look classy, Dad put tiles on all the walls and floor tiles, and Dad said this makes it easier to clean and also looks very classy. Nowadays, many people's homes use this method of putting tiles on the walls. And to make the whole space look bigger, Dad directly knocked down one wall of the kitchen and made it into an "open" kitchen. Most importantly, because he wanted the whole apartment to look visually unified, he used the same color of tiles. Looking at an apartment like this, I didn't know what to say either. After all, Dad spent so much energy on it, but this was just too much. Seeing this scene, my girlfriend's expression turned sour.

But this living room was not fully covered, only half was tiled. Still, looking at this kind of renovation, although it doesn't look good at first glance, later on with good soft furnishings it could still be saved. But my girlfriend was unhappy and said she had originally wanted a pastoral style, but now what was this renovation, and the tiles were even this kind of style.

This is the bathroom. This time Dad did not use the same color of tiles, but this mosaic pattern, why does it look so strange? Maybe everyone sees things differently.

After touring it with my girlfriend, we went back home. My girlfriend was so angry she even wanted to hit me, and she said, figure it out yourself. If it's not fixed properly, we won't get married this year. This really puts me in a dilemma. I don't even know what to do. Everyone, tell me, what should I do?