system
A chat on subreddit /r/NoStupidQuestions
human
See the "interferes with the relationship" part.

While a large amount of people can indeed, suffer from depression, you need to remember that depression is not a binary but a gradient. Most people has a manageable degree that does not interfere in their day to day.
gpt
I guess impacts =/= interferes with. Depression will impact a relationship, no matter how well under control it is. Just depends how much of a piece of you are that will determine where impact turns into interference.