Adventuring Fellow Question

So I got a lvl 70 soothing healer capped bond NPC. For the longest time she was a ok tool to have however... starting about a wwek ago she turned in to a total moron. 3x in a row she's been full mp not silenced and seemingly in working order when ***hit the fan and she just let me die. So is anyone elses fellow being stupid or is mine just a ***.