2d beat em up clamp player when leaving another player

I have been all over the place and its like no one has an swer for this. but im trying to make a beatem up and im trying to make a part where if the player is leaving another player behind (if they go in opposite directions or one isnt moving) the player cant leave or move the camera i thried clamping but it just gets janky (children rig is the player and group x is the virtual cam)

     public void Areana(Transform player)
     {
       
       
         childrenRig = player.GetComponentInChildren<Rigidbody>();
         float childrenRigx = childrenRig.transform.position.x;
         float groupX = virtualCam.transform.position.x;
         childrenRig.position = new Vector3 (
              Mathf.Clamp (childrenRigx, groupX -5.436225f, 0.460665f - (groupX) ),
             childrenRig.position.y,
             childrenRig.position.z);

i tried to clamp it around the players current location and the min and max is bassed off the changing x value of the virtual camera. it just gets all wrong is there a better way im bout to just give up and us box colliders as borders.