If my spouse was adulterous, do I get more in the divorce?

Not necessarily. Because California is a no-fault divorce state, you will not be able to “present evidence” of adultery in filing for divorce. California law only considers that one or both spouses believe the marriage to be unsalvageable – the exact reasons for this consideration are not going to matter to a court. In other states, fault-based divorces do allow people to litigate based on divorce, but California is not one of them.