Why is Sex Important in a Relationship? Love Angel said, "Sex is the connector transferring feeling for each other, and you can determine how deep your partner is in love with you depending on the level of affectionate toward you during sex." Yes! Sex is very important in relationships. I think we all know that most men need sex as long as they are breathing. So you need to be very good at making love. Good sex will relieve stress, eliminate problems in relationships, and bond you tightly together so you can overcome your other challenges together. It's not only very good for your health, but it just makes you feel good mentally and physically! And it is the best glue for a relationship. When you are married or dating, I strongly suggest you provide your partner with their sexual needs. Respect each other and address each other's needs. Always. With great sex together, you both feel good about yourselves and your relationship status, and that gives you the strength to overcome everything else that life throws at you. Lacking good sex is a serious threat to a relationship. If you want to keep and grow a serious relationship, you need to consider taking care of your partner's sex life the best you can, even if you might not feel up to it at times.