Okay, PC, just a thought I'm having, and you know me, if it's there, post it!
From my own experience, I wish SOOOO much that I had gotten to know my Mom and Dad before they passed away. There was SOOOO much left unsaid and SOOOO much I don't know about their lives; only the sadness that I saw! I never really asked much about my Mom or Dad or their feelings, and now I wish I had. I really only have a Superficial legacy and how sad is that?
Just for the wonderful loving person you are, PC, how about opening communication with them? Ask them about their lives, and you might find out what unhappiness they lived through and were unable to communicate. In our parents generation so many didn't talk about what they felt, what they loved, what moved them, what dreams they had, what hopes they had. I don't know anything of that about mine, and I sure wish I did. You might find that once communication is opened and what a loving, caring daughter you are (I'm sure they know that, but just haven't voiced it enough), they will listen to what you have to say about your dreams with FB, and trust that you made a wonderful choice for your Mate!