That wasn't pursuit. No, don't doubt yourself in this. It was support. The rules change in a situation like this, and I'm so sorry for you and your H's family.
I am wishing him (and you) well during this tough time.
You are an expert an understanding the subtleties needed in different situations. In this one, don't doubt your instinct. Follow them. You may need to offer your strength and support in ways you would not in any other circumstance. This is an exception to the rule and do not feel guilty. We have "DB DB DB" drilled into our heads, but it's okay to act differently right now.
I am hoping for the best possible outcome for your H's father, whatever that might be.