I think you need more sex.
Then you won't be crushing on others.
Baked, love is love, congratulations seems like you have chosen the right woman for you to marry.
Your desires are your desires, you may even have a high sex drive, have more sex. (With your Fiance off course) .
Don't cheat. Keep that awesome thought in your head, otherwise, you'll lose her and then you can crush on all and do what ever, but never have your Fiance again.