Should I feel bad?

I'm 20 and will turn 21 in a few months, I'm in college and work on the weekends/during breaks. I'm engaged to my bf who is 29. He has a good job that pays well, a fully furnished and decorated apartment, and a car and is able to buy me the things I need. My parents plan on divorcing after 25 years of marriage and they are selling the house I grew up in and moving into 2 separate places. I also have a 15 yr old brother who is in high school.

I plan on moving in with my fiance by the end of the month because I spend most of my time at his place anyway and I love him very much and have trouble living with my parents. So the house should sell soon and my parents expect me to go back and forth every week with my younger brother between the 2 new places since both of their places will only have 2 bedrooms, and they are mad at me because I obviously don't want to do that and I want to live with my fiance. My college is close to my home so I visit every weekend and once during the week. They are constantly making me feel bad, crying, yelling at me, and making it feel as if I'm leaving/abandoning the family. Am I really in the wrong here? Should I feel bad? I just don't understand why it is such a crime to live 10 minutes down the road with my fiance.