I don't believe Love (capital L) knows how to love with condition.
Love doesn't know how to do anything other than...Love.
In my view,
human love says, "I love you, but...."
It is conditional, subject to change, wavering, not always reliable.
Divine Love, always says, "I Love you, and....."
It is without condition, never changing, unwavering and altogether reliable.
We do know how to love and we do. We are human and we don't always get it right. We need to forgive ourselves and others for not knowing how to love, without condition, under all circumstances.
I think that's what we're here for.
To learn more about Love.