In your coding you don't refresh your listview
If you don't empty your ListView so it's added items are stored in that and when list view is load that every time that added items are repeat.
So, for that reason rows and entries increases automatically of ListWiew.
When you adding item its first clear your ListView
you only write this line before you add your items in your listview2
If its not working you fill free comment on my answer.
Happy Coding Buddy