My husband surprised me with a romantic weekend away in a 5 star hotel. I realized quite quickly I was only brought along in a service capacity. He spoiled his girlfriend in the day taking her out shopping, then they’d fuck all day before taking a break and going out for dinner each night. My job was to provide foreplay to one or both of them at their command, and to clean them both up so she didn’t make a mess of all her beautiful new clothes.
It is hard for some people to grasp not having access to your own wife's pussy. The fact is, it was never that great having you penetrate her in the first place. That is why she quickly cuckolded you when you presented her with the opportunity. Now that she has a boyfriend, she gets regularly fucked by him. Of course it is better sex, that is what you and your wife sought out. You still are her best-friend, you have your house, kids and life together. You cuddle and kiss and are intimate. Her pussy now is just for other men only and that is arousing for both of you.