tired of this never ending circle...

So i guess i cant seem to do anything  right for her all i can seem to do right is piss her off or agravate/irritate her.I mean why does she want to be with me if all I do is upset her.Damn I mean I woke up this morning and she was being all nice and "cuddley" then tonight on my way home from work she was ok than BAM half way down the street she get irritated then shes at the computer its about 10pm she puts on a online show buffering it then i say are u sure u want to watch it ? then she blows up i only said anything cuz this computer doesnt load shows well.I mean fuck I dont treat her like this at all,I rarely and mean to her i mean rarely it seems like she does it more and more every day .Im starting to feel like she doesnt want me around, I feel like a burden I feel like im her mistake.