The King of Cups has come up in my readings to show the man's intent, that he is in love, he's comfortable with it, owns his feelings and it's his choice, he's not some helpless person with his emotions out of control, not a slave to love, but it's master. Possibly has made a conscious choice to love, to protect, cherish and honor that love as well, he knows and wields the power of love.
I would also think that he is aware or feels he is the King, the top of the heap, that he knows he is loved, respected and held in high esteem.
Looking at the link, this card looks like he shares those same feelings, holding up his cup, as a declaration to the World, poised to take the next step forward. I'd say he's a man in love and not afraid to show it or go with it.