My spouse ex has file a Qdro against his retirement. Does anyone know if that would
Affect my retirement also ?

"A “qualified domestic relations order" is an order that needs to be included in a divorce agreement when dealing with pension funds. The QDRO establishes your soon-to-be-ex-spouse's legal right to receive a designated percentage of your qualified plan account balance or benefit payments." See: What Is A QDRO?
The QDRO should be between your spouse's ex and your spouse, only; and have no bearing on retirement that you own in your account(s).