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.
I’m expressing myself only because I’m well aware your description won’t be accepted by everyone since many give the human state of “in love” spiritual and even religious connotations.