Would you practice this kind of relationship?

 Its clear Robin Thicke & wife and Paula  are practicing an open relationship.They have been together since they were teenagers.Last night, they were at the VIP room in Paris and Paula was openly flirting with a stranger while Robin watched with amusement.
I was wondering, would you rather have an open relationship(He/she cheats openly with your approval ) or let your spouse cheat behind your back?
(DEAR PALS..for those who missed this info,Sorry for the irregular posts.I'm in Cameroon now and the network isn't favorable.Bear with me for a few days)
Before you answer,see more pics of their wild night below

  

Robin kissed & put his arms around her while she danced with the man

After dancing with the stranger,she was back on her hubby's lap

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