<human>: Provide a brief overview of the text.

So I'm not very experianced on asking for help so ill just jump into it.

Some background information; I'm a guy, and I'm 15 years old. My mom has arthritis all throughout her body, it's to the point where she cant even bend down and pick something up off the floor, she thinks that going to a warmer climate will help her we live in Portland Oregon. My brother and I try our best to help out around the house so she doesnt do all the work, and we're really close. My dad and I have a very close relationship, we've discussed everything, my becoming an atheist exc. my family is really close to each other, we all loved each other a lot and were really happy, but now... I don't know. 

For the past couple of years, every time my brother and dad are away, my mom confides in me. She tells me things that no one else knows. In the past couple of months however, shes started saying things like "shes leaving" or shes "going down to California". I generally get advice from my brother on how to handle these pretty intense situations, not telling him the details, but with everything that's been happening in the past couple months, i don't know what to do. With my mom crying, or throwing stuff around the house, or being extremely emotional to the point of breaking down in front of me, I'm completely at a loss for words. So today, after a particularly intense couple hours, my mom catches me putting away my phone. She asks, "Did you tell your dad what happened?" I said no, saying that I told him to take her on a VERY romantic dinner tonight, which usually helps her after a very hard week. She looks me in the eyes, hers still red and watery after crying and said that its too late, and it wouldn't help anything. I've always thought my parents had a great relationship, they never yell, they never argue, and they seemed genuinely happy, but now... I don't want my parents to split up, and I don't know what to do.
<bot>: My mom might want to get a divorce and move down to California, my dad and brother don't know, there might still be time to save the relationship, but I dont know what to do.