Following more than two decades together, Steve Burton has officially

 ended his marriage to Sheree Gustin.

According to reports on Monday, the "General Hospital" alum filed for divorce, 

citing irreconcilable differences. The date of separation was listed as March 1.

Burton, 52, and Gustin, 47, were married in January 1999 

and have three children: Makena, 18 years old, Jack,  

16 years old, and Brooklyn, 8 years old.

"Days of Our Lives: Beyond Salem" star is seeking joint 

 legal and physical custody of the children. Once the parties 

 have legally separated, he wants the court to terminate either party's right to receive spousal support.

His divorce filing comes two months after he accused  

The investigation revealed, however, that she had begun filming scenes

Gustin of getting pregnant with another man's child.