Deleting a file inside a BeginArea and BeginHorizontal

Right now I'm trying to delete a save file.

My save files are loaded within a foreach loop and hooked to buttons. Tapping the button loads the corresponding level.

I realized I had no way to delete these levels, and so I tried to implement what I thought would be pretty easy.

 void OnGUI()
 {
     GUILayout.BeginArea(new Rect(Screen.width*.545f,(Screen.height*.25f+scrollPosition.y*-1),Screen.width*.45f,Screen.height*.7f));

     GUILayout.Label("Saved maps");
     foreach (var f in dir.GetFiles("*.dm"))
     {    
         string del = ",";
         string text = System.IO.File.ReadAllText(f.FullName);
         string[] lines = Regex.Split(text, "\n");
         string[] cells = Regex.Split(lines[lines.Length-2], del);  
         
         GUILayout.BeginHorizontal();
         if(GUILayout.Button (cells[1]+":"+cells[0]+"  "+cells[4], GUILayout.Width(Screen.width*.349f), GUILayout.Height(Screen.height*.06f)))
         {
             StartCoroutine("LoadOld");
             //Application.LoadLevel("Table");
         }
         if(GUILayout.Button ("Del", GUILayout.Width (Screen.width*.349f), GUILayout.Height(Screen.height*.06f)));
            {
             File.Delete(f.FullName);
         }

         GUILayout.EndHorizontal();
     }

     GUILayout.EndArea();
 }

The problem occurs when I add the second button (including both buttons in a Horizontal layout) and suddenly when ever the scene loads it deletes all the files without any user input. What's going wrong here?