Do you think I was ripped off when I sold my home?

My ex and I bought a house in 1982. We paid $45,000. We divorced in 1991. He was awarded his Boeing sick leave, which had accrued over years. I think it was worth $10,000. I was awarded the house, the assumption being I would get an equal amount, more or less, when I sold it.
I sold it in 1995 for $48,000.

Yesterday I composed a post here, on another thread, where I noted that after it was sold, to my utter, devastated shock, there was nothing left over. It was my impression that the realtor who sold it took it all.

After I made that post it hit me…could the realtor have flat ripped me off? Single mother, totally alone, no one to help or advise me?

Since I received my Realtor’s license in Feb I know a tiny bit more now than I did. The commission rate today is 6%. 6% of $48,000 is about $2,880.

After 13 years of paying $400 ~ $500 every month, never late, never behind, there had to have been equity built up, plus the $3000 I sold it for, over and above what we paid for it. Surely there was more than $2,800 in it? Something was wrong, right?

The only thing I can think of was that I refinanced in 1990 or ‘91, to bring the payments down so that I could afford them by myself. Would that have made such a difference?

I need to start researching. Anyone have any ideas what my options are here? Anything to offer or suggest?