10 - Amidst a Snowstorm of Love - ML’s parents, although the infidelity is spelled out only in the web novel. So if that doesn’t count…
10 - She Would Never Know - several characters harmed by infidelity, but the childhood damage is caused to the FL.
10 shows where a character fakes being religious.
1 - Shine on Me - FL’s divorced dad’s mistress, a real piece of work, drops to her knees in front of an altar as soon as he heads to her front door. Once he’s gone, she stops her act. And one time she actually throws her prayer beads down onto a table in anger.