The Hills › Season 4 › Cast › Heidi

Heidi has finally decided to let Spencer move back into their apartment, but soon she'll have even more difficult decisions to make. After choosing Spencer over work after he stormed her business trip, Heidi has to deal with her boss. And, as if Heidi didn't have enough on her plate already, now her sister Holly is moving to Los Angeles -- and moving in with Heidi and Spencer. Spencer is not too pleased and promises he'll move out if Holly doesn't first. Putting her career on hold is one thing, but what will Heidi do when Spencer comes between her and her family?