Budden Vs Ex

Break up talk I guess...I heard it yesterday and I personally don't care to know what this girl was doing while you two were dating. How do I know you're telling the truth and even if you are what's the point of sharing with us the negatives of a relationship which clearly did not work out. 
I can only comment on the medical part of the song where it states that she was sexually active during pregnancy and I know for a fact that Doctors around the world advise to do so as a woman should never neglect intercourse, especially during pregnancy.