None.
Just because you have faith in something, doesn't mean you love it or that it loves you. You can take the existence of love on faith - but even according to the Bible, Love is shown through acts.
So that begs the question - how is "love" demonstrated by allowing a child to behave in self-destructive ways? Hmmmmmmmm.
Very good question, but as difficult to answer as to explain how a mystic prays.
Your question is specific to the relationship of faith and love in Christianity, so the first link below gives you a place to start.
To really understand the relationship between the two, you must be both a Christian and a lover. (Basic principle: First you are and then you act (Aristotle).
The second two links indicate why the answer to this question will entail for you---and me---a lifetime journey.
http://ministeringdeliverance.com/blog/archives/96.htm
https://www.catholicculture.org/culture/library/view.cfm?recnum=9375
It's difficult to recognize something,
that's not a part of you.
Didn't find the answer you were looking for?