grieving nikki thomas , from south wales , says she wants to turn back the clock and tell jenna that she did n't have to ` put up ' with her former partner 's obsessive behaviour .
but jenna , who was strangled to death by philip packer in a jealous rage in 2008 , never reported his behaviour to police - and paid the ultimate price .
nikki , from north cornelly , appeared on today 's this morning in honour of her sister .