How do I support my SO who is the caregiver in another state?

I'm sorry I really didn't give any information did I?
My husband is helping to take care of his parents in Colorado. Mom has stage 4 Cancer and Dad has beginning of Dementia. They live full time with his sister's family. For the last 26 months my husband has been going back & forth (mostly there) to help for months at a time. No matter where he is he feels bad that be is not in the other place. I'm supportive most of the time but I feel incredibly selfish for wanting him home. He decided to come home for a longer period of time this time but I need to figure out a better way to be supportive emotionally. I believe he is incredibly lucky to be able to have this time with his parents but at the same time he is missing out on big life events here. It breaks my heart to see him torn between being home & being with his family there.

Not certain what SO is undergoing, so cannot suggest what kind of support. Need more info.

Please complete your profile, so we can better answer your question.

Who is being cared for?

What are their medical conditions?

Where do they live? In their home, in a facility? What type of facility?

What help do they need?

Who is paying?

Are there siblings?

Does the parent have a spouse?

Is the care giving full time or periodic?

Please provide more info:
- what kind of support are you talking about (financial? emotional? practical?)
- who is your SO caring for?
- what states are involved?
- how long has this been going on?
- what condition is the person in that your SO is caring for?
- what support does SO have in the other state (relatives? LO has financial means? residing in county w/resources?)
Thanks!