The couple recently announced their split, but the 'Blurred Lines' singer has told fans they should always ''fight'' for the person they love ''no matter what''.
Speaking to fans at a New York gig at Madison Square Garden last night (07.03.14), Robin said: ''When there's someone you love, you gotta fight for them no matter what.''
Robin has been opening up to fans a lot while he's on the road, and recently told fans in Atlantic City that he was trying to spread ''love and joy''.
He said: ''Never stop believing and you never stop loving. And even if it is over, make sure you treat each other right. Treat your family right. Take care of your mom, take care of your kids and good things will come to you. Just keep believing that God is good.
''That's what gets me by. Sometimes when I get a little scared or worried about the future, I just try to stay positive and do my part to spread love and spread joy.''