Relying on someone, helping each other out, and supporting each other. Most would say that's the right thing to do. However, that's just idealistic. In reality, someone always gets the short end of the stick.
Yeah but some people are just flexible either that or they easy to trick. Here's one saying from my home country (in English) no one will get tricked if no one allows themselves to be so or just don't be ignorant and naive.