What are some ways to support a neighbor or community member dealing with a mental health disorder without making them feel alienated?

How do you manage your own fears and biases when interacting with someone who has a mental illness?
Do you think behind a lot of anger are usually a lot of tears, philosophically speaking?
What makes us seek comfort in understanding an ex's behavior, even if it challenges our core beliefs about relationships?
Why do some people suddenly stop enjoying alcohol even if they've been drinking socially for years?
What makes your sweet mind so dear to you?
Why do people sometimes blame the disorder instead of the person when trying to make sense of a hurtful relationship?
Is it bad that I like being right? If I'm arguing with someone and we're both wrong, I will do research and bring up the subject like a week later, but if they're right, I'll learn and use it, just so I can be right in the future.
How can loving your girlfriend or boyfriend help your philosophical well-being?
Why might forgiving hurtful actions in a relationship with a BPD partner lead to more confusion and self-doubt?
Why is the beauty of life its sweet ability to make you feel loved?