advice
depending on how long you 2 have been together, if i were in your shoes i would:
option 1)be angry, confront her, depending on what she says end it or not
option 2)ask her, if she seems like shes lieing when you ask her and you have proof that shes messing around do it back to her 3x as bad (thats just me)
option 3)if this isnt the first time something like this has happened and you dont think you can fix the relationship in anyway end it
option 4)talk with her about it and make sure to tell her how you feel
n option 5)if you want the easy way out just end it, say youre not getting enough attention or something along thoses lines.
depending on how long you 2 have been together, if i were in your shoes i would:
option 1)be angry, confront her, depending on what she says end it or not
option 2)ask her, if she seems like shes lieing when you ask her and you have proof that shes messing around do it back to her 3x as bad (thats just me)
option 3)if this isnt the first time something like this has happened and you dont think you can fix the relationship in anyway end it
option 4)talk with her about it and make sure to tell her how you feel
n option 5)if you want the easy way out just end it, say youre not getting enough attention or something along thoses lines.