when someone sends messages to women and they don't reply, what does it mean? that they have checked your profile and you are a total *******??? or they already found someone?? or what??

the first choice

They are playing hard to get.

it just means they didn't reply... move on to the next...

mightymoe is correct.

Depends on the type of message and to whom you are sending it to. Nudges are just that, a nudge, you cannot really expect a reply to them unless they are interested in you. If you are sending emails to people outside your own country, be aware that a lot of people are just not interested in anyone overseas, so they are not going to bother to reply. In my opinion, it is better to send emails to people in your own country because you are more likely to receive a reply from them.

Welcome to Mingle2 and good luck in your search.