He was seeking pleasure + adventures. This usually happens when someone have a very stable relationship going on for quite sometime.
They get Bored , seek pleasure outside , do it a few times then return to their partner again.
If Gone unnoticed this becomes a habit.
The feeling of doing something behind someone's back (secretly) gives the feel o...... reply
I see incest in Muslim community. I live among them. Cousin marriage is allowed. Neighbour country is also Muslim dominated so you know.
Also there's incest in my community too . But it's in much diluted form. Means there's generations gap. But still people are related due to caste and all that.
So my take on Incest relationships are somewhat libe...... reply