As-Salaam-Alaikum, need some guidance after father's passing

As-salaam-alaikum everyone. I'm hoping you can help point me in the right direction for looking after my mother now that my father has passed away. I'm in my mid-30s, Alhamdulillah married with no children yet, and have a younger sister who is married with three kids. My mother is in her mid-60s, is healthy and financially independent, alhamdulillah. Here's my situation: before we got married, my wife was clear that she didn't want to live with any in-laws. It wasn't anything against my parents, but she's seen a lot of marriages struggle and have major conflicts because of living together. Now, I really feel a strong Islamic and moral duty to take my mother in and care for her. But I'm completely stuck on how to even start this conversation with my wife. On one hand, I would carry a huge feeling of guilt if I didn't provide for my mother, especially knowing she's now alone. I worry about her feeling isolated after my father's death, and I'm constantly anxious about her having an accident at home or not looking after herself properly. On the other hand, I really don't want to put my wife in a difficult position or go against what we agreed. I'm looking to understand what my Islamic responsibilities are in this case, and any advice on how to kindly and respectfully approach my wife about this. Any thoughts or guidance would be so appreciated. JazakAllah Khair.