in love with someone who doesn't love me back

hi guys so recently ive started back talking to a long lost friend. we started back getting connected & now i am falling for him again. he told me he wants a son. recently, we got into a agurment because i asked him who has he fallen for? he ofc refused to answer the question and he said this "It's certain things.... like that.... it's not you so why would I tell you who, how would that make you feel..... you'd always be trynna figure out why not you" . i jusy need some advice on what to do