Perhaps it is bad if you're eating potato chips and other assortments of junk food while sitting at your computer, and your butt is so big now that you cannot lift yourself out of your chair. If that is the case, then yes, it is bad.
Uhh well i cant say its bad because sometimes i do that myself ._. but i dont do it all the time if your doing it like everyday then yea it can be a problem :o go out and get some fresh air let your mind breath or at least take a one hour break to give your brain and eyes a rest :p other then that its not really bad since i dont see anything wrong with it :D
tell her. it is unfair to her to be waiting for the wedding and be all in love with you and stuff. if you are not ready for this than say so. it is not worth the divorce and unhappiness that an unwanted marriage will bring you.