Answer:
Albert dussel is an elderly dentist who joins the Frank family and the Van Daans in the annex. He and Anne share a room and as we can see from her accounts,they both despise each other.Anne hates not having her room all too herself and Mr. dussel who feels very lonely doesn't like sharing a room with anne because she is too noisy and spunky according to him(She is misunderstood).
Explanation:
