Repeated and abrupt discontinuation of Paxil, Effexor, Zoloft, etc was one of the reasons my ex fiancée and I split. This would happen over and over and she would never say 'oh by the way dear, I've gone off my meds or am intending to'. She would literally 'flip shit' (I like that term) over the most inconsequential of issues and expect me to back her up 100%.
Worst time was back in 2008 just before the US general election she got quite upset over a pre paid cell phone (purchased in the US) not working in Canada. She kept ranting and raving about it and 3 days before said election decided that we were going to travel to the US to 'teach Walmart a lesson'. I road shotgun with her, and at the border DHS asked us why we were taking a 6 hour trip (no, that doesn't sound suspicious at all), we somehow got into the US and arrived at the Walmart.
Got into the Walmart, she went to hardware and asked for a hammer and then proceeded to smash her pre paid cell phone in front of employees, singing 'The anvil chorus' as she smashed the phone. She remained blissfully unaware that the police were going to be called.
Over and over again; it was a predictable pattern. Not helped by the fact that her shrink was vastly over prescribing Xanax and she would have 100',s of pills stored up.
She was on these meds for a reason and they did help her when she took them as she was supposed to.
Tom