Happy or will regret it?

Anyone else happy being single? I got divorced 4 years ago and I’m just so happy being by myself, that I just don’t see myself getting into another relationship anytime soon. I have two preteen kids that take up a lot of my energy and work full time. Will I regret this later? I’m 43f and still look very young for my age. Just wondering if I’m just getting too comfortable being alone.