Just getting on with life.
Many people are single and happy about that and just getting on with life. You might be doing some fulfilling and worthwhile work. You might be hard at your studies. You might be involved in some all consuming project.
You might be too young or busy or distracted or happy to be thinking big thoughts about future commitments. That’s fine! Be happy and be holy. Just make sure that now and then you stop to think about your vocation as a Christian, and to ask the Lord in prayer if he has any other plans for you.
You have every right to make the most of this situation, without undue anxiety – as long as you are open to other possibilities as well.