Both singleness and marriage are good gifts from God, they both come with their own benefits and their own responsibilities. Marriage brings with it the good gift of sex, but that gift also comes with restrictions and responsibilities. Singleness grants to the single person a level of freedom that those who are married do not have, but that freedom comes with the reality that sex is reserved for those who are married. We need to thank God for whatever gift he has given to us and trust that the restrictions each of those gifts come with are for our good and His glory.