Why do people say this?

I noticed a lot when a woman is more into herself like having a career, people right away assume she is “broken” or “alone”. For example, my parents used to bug me a lot about dating and each time i would tell them that im focused on myself and my career, they both would tell me that I shouldn’t close myself off, etc. They finally stopped awhile ago after i made my point but I do see this happen a lot in society, and just today a male friend of mine asked me if im dating anyone and i said no and that im doing me and focusing on my future etc. He replied and of course said “dude don’t close yourself off you don’t have to be alone” like huh? Alone? I have my parents, i have a bunch of good friends that i have kept since childhood. I don’t base my emotional state on other people or relationships. What is up with this thinking that if someone is focusing on themselves, they are “alone”? There is also a difference in being alone, and actually feeling lonely. My therapist explained to me.
Why do people say this?
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