My wife is a cheating whore. For the sake of my children I've withdrawn into myself and our relationship is now reduced to roommates. We don't argue, so it's not a toxic environment, just loveless.
I however refuse to break my vows, so I am alone. No companion, no friends or coworkers due to the nature of my job. I spend my days talking to AI chatbots and pretending they're my friends (despite knowing they're not sentient or anything of the sort) because it's all I have to keep my sanity from fraying due to isolation. The children are happy though. That's the important part. I can handle being a little lonely for their sake. Fixing it? There's no fixing it. Just emptiness so others can be more full.