Looking for long term SP (woman)

I am 35 and married.

I am a nice person with a car.

My wife doesn't need sex often, that's why I need to find a stable, safe sex partner to fullfill my needs. (So that love between my wife and I won't affect by not having enough sex)

Preferable:
1. Married women (so no burden between us)
2. Women looking for boy friend and need sex (Can stop our relationship after you have a boy friend)