First don't have a stupid routine be spontaneous take her on a random holiday or summet don't stay at home so she can go and flirt with other guys take her on holiday or far away from home for a while give her the best time of her life.. If she says no to the holiday and if she leaves you to go to her exs again dump her straight away and go clubbing mate pick up a new girl get pissed and hav time of your life.. This should be very very helpfull