I can't imagine anything more healthy. Those are all valid emotions a healthy person should exhibit. Being happy when life is good and being sad when life is bad is healthy because you enjoy good things and times and allow yourself to be negatively affected bad by things and times so you can avoid or change them.
If emotions were a spouse being happy during bad times would be similar to being happy when your spouse is abusing you and enduring it. Isn't it more healthy to be negatively affected by it so you can change or exit the situation?
One can probably talk about having a positive outlook being overall a good idea in life in many cases, but I'm also inclined to agree with you that experiencing the whole emotional spectrum when appropriate is also an enriching experience.
Just as long as you don't let certain emotions or feelings overwhelm you too much, e.g. getting used to being angry about something and focusing on it too much. Learning to let things go is probably also a useful skill, as is self reflection.
I agree with this. The important thing is to rule your emotions instead of be ruled by them. Taking an active and dominant role in dictating your emotions so thay they align with reality.
If emotions were a spouse being happy during bad times would be similar to being happy when your spouse is abusing you and enduring it. Isn't it more healthy to be negatively affected by it so you can change or exit the situation?