Problem with Modal Window duplicating

I have a modal window with a UI Picker it loads properly and closes properly the first time it pops up. The second time it runs there are 2 UI Pickers, the third time it runs there are 3 UI Pickers, etc... I am closing the modal properly and it is being created within an AddEventListener so I thought it would be destroyed properly, my partial code is here:

function DetailView() { var self = Ti.UI.createView({ backgroundColor: '#dddddd', layout: 'vertical' });

var tbl = Ti.UI.createTableView({
    bottom: 70,
    height: Ti.UI.FILL,
    width: Ti.UI.FILL
});
self.add(tbl);
var data = [{title:"Row 1"},{title:"Row 2"}];
tbl.setData(data);

var btnEmail = Ti.UI.createButton({
    title: 'Email',
    top: 10,
    height: Ti.UI.SIZE,
    left: 10,
    width: '45%'    
}); 
btnEmail.addEventListener('click', function() {     
    Ti.App.addEventListener('contactSelected', function(e) {
      // LOAD MODAL
      var contactWin = require('ui/common/Recommend/contactModal');
      contactModal = new contactWin(e.data);
    });
});

return self; }; module.exports = DetailView;

contactModal.js function contactModal(data) {

var emailPicker = Ti.UI.createPicker({
    selectionIndicator: true,
    top: '40%',
    useSpinner: true
});
emailPicker.add(data);

emailPicker.addEventListener('change', function(e) {
    var emailAddress = e.source.getSelectedRow(0).emailVal;

    modalWin.close();
    var body = 'body';
    // lib/mail Uses the Titanium.UI.createEmailDialog(); to send an email          
    var Mail = require('lib/Mail');
    Mail.sendEmail(emailAddress, 'recomendation', body);
});

var modalWin = Ti.UI.createWindow({
    title: 'Email Picker',
    backgroundColor: 'transparent',
    layout: 'vertical',
    modal: true
});
modalWin.add(emailPicker);
modalWin.open();

}; module.exports = contactModal;