Let Sleeping Dogs Lie

I am not a relationship guru but a girlfriend, M just called to share that her boyfriend has called it quits with her and went on ranting non-stop.

As usual, I asked for the cause only to realise that the Boyfriend couldn't stand M from taking about her past relationships into their existing one. The Boyfriend finally threw in the towel after M laments about the 'Ex' all day during the period of their relationship.

M, why?
Why do you choose to dwell and talk about the past?
Although I agree that we learn our flaws from the mistakes we made, but shouldn't you be accepting your Boyfriend as an unique individual?
Why blur the present with the past?

As the saying goes, 'Let Sleeping Dogs Lie', my friend!
Move on..please!

There is whole lot more interesting stuffs to do other than talking about your 'Ex'..
Go..plan a pinic, be like kids..have fun at the zoo/sentosa/night safari or even challenge him to do something he is afraid to.

Please, just let sleeping dogs lie..forever