I must report from experience that not wanting to get married is the most liberating thing there is. Let’s look at it theoretically. If you do deem it necessary to convince someone to agree to spend the rest of their lives with you, you’re going to go out of your way to suppress the more objectionable aspects of who you are, of how you’d prefer to live your life.
There is a lot about who we’d like to be as individuals that is fundamentally flawed vis-à-vis societal standards. And so, you shut that part of yourself up to get some of that sweet death-do-us-part action.
But if, like me, you have no desire to rope another person into a lifelong commitment to you, then you really can be yourself. You can explore who your authentic self is. You don’t have to fix a single one of your flaws.
And, ironically, that free spirit makes you most attractive of all.