Sri Swami Vishwananda is talking about Radha's Love to Krishna... True Love that is unconditional...

Radha- among all of the Gopis She was the preference of Krishna and also She loved Krishna the most, more than any of the other gopis.
For Her Krishna was everything, there was no left or right, there was nobody else except Krishna.
Why Radhika had so much Love for Krishna?
Actually Radhika, Radha is Krishna Himself, is part of Himself, who has incarnated before the main aspect of Narayana came on earth.
She is the Bhakti part, the part of devotion.
So Her Love was so intense for Krishna, that the other Gopis in Brindavan would tease Her.
They would tease Her by calling Her Krishna, but She wouldn’t mind.
She was older than Krishna, but yet Her Love for Krishna was not a Mother’s Love, was not a friend’s Love, but it was a Lover’s love.
A real Lover, who not only says “I Love you, I Love you”, and then it doesn’t mean anything, like nowadays so many people say “I Love you, I Love you”, and then they don’t really mean it, they don’t even have Love in it.
These are just words.
But Her love- She doesn’t even need to say "I Love You" to Krishna, because Krishna would run towards Her.