I want to save my second marriage.

This is second marriage(arranged in same caste) for me and my husband. Problem in this marriage started within first week. My in-laws are very possessive, used to interfere and brainwashing my husband. Due to this within 3 months of marriage my husband suggested staying separate from his parents so we started staying in rented apartment. In 4th month, I learnt he has high BP high cholesterol chronic depression since 2012 we got married in 2017(he takes medicine for all these) and also impotent. I accepted all this and continued living with him for 4 years. We always had loving relation though no physical. Sometimes we had fight due to finance and parents interference. He was dependent on his father's business. Suddenly after 4 years he came and gave me divorce notice and left our house in Nov 2019. Pretended of staying in dormitory but staying at his parents place. He did not pay rent of our house. After all deposit got exhausted I had to forcibly move to my parents house in jan 2020. Do I have right to go to in laws place? Same house where I went after marriage which is in my father in law's name. My husband takes care of whole business still both farther and son show him as an employee. I love my husband what are the ways to save our marriage? He is asking for mutual. Offering alimony. Even went to extent of going to relatives to convince me for mutual. Till date i have not submitted my reply against his notice allegation.