I am not sure why any man needs your address However! Your passport is a basic requirement unless the man intends to travel to Lviv to meet you! Unless im meeting a girl in her city i require her passport, a phone number, viber, and email address. Passport details are so man can provide transport and accommodation and understand who he’s meeting. If there’s going to be no meeting why chat? Often man is not interested in a different surname has long has pictures and other details match. I presume that some girls worry if they still carry married name still (which is often true) if the man looks like brad pitt and your in your 50s then be worried but if we talking normal man theres nothing to be worried about if conversation is normal for a few weeks and he wants your passport details for meeting.. asking for this randomly is strange