Potential spoiler:
I can really relate to Robert. It's not easy to write a character with depression and panic attacks that well. Also the way others feel about it and deal with it, or rather sometimes no longer have the energy to deal with it. This was super realistic. I think you did a really good job!
Btw the way that panic attack came out of nowhere was really good, hence the spoiler warning for others that might not have seen it yet.