Based on a majority of reviews, it is cheating even though sex is not taking place. This is because; the other partner will be taking special moments that the actual boyfriend should have taken. In other cases, one ends up lacking time for the other partner.
Just think.... If your partner does what you are doing behind they're back and if you would't appreciate it then yes it's cheating. If you feel like you have to hide what your doing from your partner then you are as wrong as two left shoes. Good luck!