Sometimes a problem in a family makes it awkward for outside members to communicate. Not sure if that is the case in your situation but they may be just not wanting to get involved in what may not be their business.
Can you contact them and have a talk? Maybe just opening the lines of communication is all that is needed.
Regardless of how this unfolds, you know your truth and your situation, that's all that matters in the end. What others think is only speculation because they are not you and haven't lived it.
Hugs