My 20-year-old daughter lives at home and works part-time while attending college. I won't let her and her new boyfriend (22 years old) hang out in her bedroom (bedroom is upstairs) since I know how it may evolve into a nasty habit. Johanna, 30, was living in a one-bedroom Manhattan apartment with her boyfriend when they decided to move in together. Despite the fact that he already had a two-bedroom apartment in the city, they decided to start over and hired a new two-bedroom for approximately the same price as renting separately.