The quote from Joshy:
I think Suzi and Emma are both quite real. Both are "what you see is what you" get kind of girls. You can love Suzi's attitude or hate it, but you can't really ignore it. The same with Emma's sweetness.
With Charlotte, being a supermodel, it's somewhat different. The public sees the superstar but the MC is getting to see the real Charlotte, which is a very different person. Personally I much prefer the private Charlotte, although I can see she won't be easy to live with.
If anything, the "gold-plated" would refer to Charlotte, but not to Suzi.
Unless
znar25 refers to sports medals, which are actually gold-plated, but that seems far-fetched to me.