Are you meeting up with all these women in person or watching p 0 r n? Regardless, it is no wonder or surprise that your wife doesn't have any lube left. The essence leak in your relationship is a gusher. Breaching intimacy in such a manner is enough to dry any woman up. It is called sexual vampirism when people feed off the sexual energies of others to get themselves worked up so they can get off. I realize your intention is to turn us all on and create a synergistic vortex of perpetual sexual indulgence, but you are going about it all wrong.