Relationship between custom fields

Hello.

Here I am Again with hopefully the last question and then don’t disturb You agin for long time ??

Is there a way to connect 2 or more fields between them?

This is my Scenario, that i think is kind of typical:

People in the registration have one Radio (I am male/female) Then inside their Profile there should be a field dropdown (I am searching for a male/female). Now Let’s suppose that a second user let’s say a male, want to search all the female searching a male. Or also only a female. How can be done? Thanks once againe