story or justification or “things he doesn't know/understand about this very complicated relationship,” you are a stalker. Normal relationships do not require logical contortions or insider knowledge. If you are engaging in activities that need elaborate justification, you are a stalker. 

  
 Further reading: 
 There, ah, isn't much. Did I mention that this is an underreported problem? But A Study of Women Who Stalk has some useful information to offer.