Am I being unreasonable?

I have been living in hell for the past few months. My mom is living with me and my husband wants her out. Let me start from the beginning. 3 1/2 yrs ago I had to bring my mother to live with me after hurricane Maria destroyed Puerto Rico. She is suffering from dementia and when she arrived she was in critical condition. She was malnourished and she was completely uninterested in spending time with the family, the first 1 1/2 she spent most of the time in her room. The last 1 1/2 she started to want to be around more, but she started to wonder, she already got lost twice and the police had brought her back home. After these two episodes, I’ve had to come to terms with the fact that I have to place my mom in a 24 care facility. That was the first issue I had with my husband because it took me some time to accept that fact. Now, my mom doesn't have a lot of money, but she has a property in Puerto Rico that we are in the process of selling. When everything is set and done she will probably net around 38k-40k, not much. I am going to use some of the money to pay for the place she is going to live until Medicaid kicks in, I am going to keep some money safe to get her the things she is going to need. The issue is that because we have been providing for her for the last 3 1/2 yrs my husband wants to keep half of this money.