Guess what, not all important relationships are about romance, sex, or procreation.
Love is abundant in people who are safe and healthy. We can love many people in many different ways, without running out of love. We all need a variety of relationships in our lives, and every relationship we have is different from another, so none need to be in competition for our feelings.
How our time is spent and with whom is not quite as abundant, so balancing our lives means being emotionally self-aware and communicating with each other about our needs.
Every person is different, and needs different things emotionally, physically and mentally. Every person can be different from day to day or year to year too, so communication, kindness and patience are super important.