I’m being very specific for a reason. I think I have a clue what family bond love is, but I don’t think I had experienced any type of romance in my 34 years of life.
I’m aware this answer will vary, but that’s why I’m expecting diverse answers and then I could make a sum of all of them.
When you have been with someone for a long time it can feel a lot like family bond love but with more physical and emotional intimacy. Not everyone likes the idea of it in my culture but I think there is also an element of willing possession too.