I beg to differ. IMO having a good sex life, especially when you are young, is often the glue which holds a relationship together. If, C, in the past, had a mutually satisfying sex life with B and it suddenly stopped, then it it is only natural for C to wonder why and suspect that another woman could be involved with B or even a man.
Women in this situation start looking for signs of infidelity. They search their partner's mobile if they can get access to it, wonder where he has been if he is home late, look at how and where he has been spending money and discuss it with their counsellor.
In the case of murder, if evidence is found that all sexual relations had stopped before the murder, it often points to the fact that the possible motive for the murder is that, instead of getting a divorce, the unfaithful partner has chosen murder as the solution so that they can move on with the new partner.
Motives for murder can be condensed into four sets of 'Ls':
Lust; Love; Loathing; and Loot!
IMO sensationalising sex to the media would be spelling out the details of an active sex life - not that there was no sex life.
On WS, when a woman is murdered by her partner, the first questions we usually wonder about are: Was there another woman? Did she have a life insurance policy?
