Last Question: How can I be supportive to someone who has a disabled child? I feel out of place a lot around them.

It's not easy I'm sure to see someone devote their life so wholehearted to their child.  And it certainly is not easy to understand the words they use everyday to describe their child or talk about their child.

I did have a support system from my family as they faced everything with me.  But you will probably find the parent being to pull back as they probably cannot attend regular functions like movies, and dinner on a regular basis or you may feel they pull back because they feel you will or cannot understand what they are going through.

My suggestion would be continue to provide support. Even asking daily how their child is means a lot to someone experiencing everything  with their child.  I can tell you from personal experience having someone who has never met my son in person asked daily about him and it felt great knowing someone out there cared, even just a tiny bit.

And also be there for them. Spend time at their house, ask about any new milestones happening, ask them how they are and offer to help like going to store or making something or taking the effort to understand their world can go through a whole lot but importantly mention if it becomes too much for you to handle and you need to back away.  Just knowing that their new life and child isn't the cause of the sudden diminished contact with you will help them feel okay if you need to step away.