Benefits of Sexual Activity With Your Partner

Regular sex has a lot of benefits for a good relationship in addition to the advantages for you and your spouse personally.
For instance, the oxytocin released during intercourse increases emotional intimacy and the sense of bonding.
Quoted from verywellmind dot com
Sex deepens your emotional connection and level of devotion to your partner in a monogamous relationship.
Couples are more likely to remain together when they have sex to express their love.
Sex is therefore positively linked to a decreased divorce rate.