Whats going on inside this ListView?

I have a ListView that when I click on an item inside it, a dialog fragment appears with a Save and Delete button. Everything works, and it updates the adapter correctly, removing or updating the items from the ListView. Now the problem is that when I delete the top item, or the item above another item, but lets just say there are two items because its easier. When I delete the top item, it's removed from the ListView, but when I click on the same spot, because now the bottom item moves up to the top, the old item data appears in the DialogFragment. In other words, I'm selecting the old item. Here is the code:

using Android.App;
using Android.Content;
using Android.OS;
using Android.Views;
using Android.Widget;
using System;
using System.Collections.Generic;

namespace Zrelya.Fragments
{

    public class ViewPlans : FragmentSuper
    {
        private Context mContext;
        private ORM.DBRep dbr;

        private static Adapters.Plan Adapter;
        private static ListView listView;
        private static List<ORM.Plan> plansList = new List<ORM.Plan>();


        public ViewPlans(Context context)
        {
            mContext = context;
        }

        public override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);

            // Create your fragment here

            dbr = new ORM.DBRep();
        }

        public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
        {
            // Use this to return your custom view for this Fragment
            var view = inflater.Inflate(Resource.Layout.ViewPlans, container, false);
            listView = view.FindViewById<ListView>(Resource.Id.listView);

            plansList = dbr.GetPlans();
            Adapter = new Adapters.Plan(mContext, plansList);
            listView.Adapter = Adapter;

            listView.ItemClick += (o, e) =>
            {
                Activity.RunOnUiThread(()=> {
                    plansList = dbr.GetPlans();
                    DialogViewPlan(plansList[e.Position]);
                });

            };

            return view;
        }



        private void DialogViewPlan(ORM.Plan plan)
        {
            if (plan != null)
            {
                FragmentTransaction transaction = Activity.FragmentManager.BeginTransaction();
                Helpers.DialogViewPlan dialog = new Helpers.DialogViewPlan(Activity, plan);
                dialog.Show(transaction, "dialog");
                dialog.OnDelete += delegate
                {


                    Activity.RunOnUiThread(()=> {
                        plansList.Remove(plan);
                        Adapter = new Adapters.Plan(mContext, plansList);
                        Adapter.NotifyDataSetChanged();
                        listView.Adapter = Adapter;
                    });



                };
                dialog.OnSave += delegate
                {
                    Adapter = new Adapters.Plan(mContext, dbr.GetPlans());

                    Adapter.NotifyDataSetChanged();
                    listView.Adapter = Adapter;
                };

            }
        }
    }
}