The problems - as I see them - and the reason she kicked you to the curb are as follows:

- The poem
- The neediness
- The kinky movies line on a second date (where she obviously wasn't feeling that same level of 'sharing') - you overshared
- You may have pushed a bit too hard to get her back to your place.
- The poem
- The poem

Both the movies and the pushing to go back to your place were areas where you could have probably read her interest level and reaction to you better. It's fine to say those things, in general - as long as the other person is ready for them.

What probably didn't contribute:

- The smilies - dial them back a bit, but I doubt you got dumped because of them