It takes them a week to figure out if they have worthwhile chemistry with a person and from then on they will be exclusive with them.
That, on the other hand does not mean they are looking for a super serious relationship. Fidelity on the whole is less strict than in America, but this is of course individual too.
It’s rare for men and women to go out by themselves with friends once they are an item.
Brazilian men love flirting with women so if a woman shows up alone, they will do so.
They will start talking to you and paying you attention physically by touching you and kissing your cheeks.
After a while, maybe as little as five minutes they will try to kiss you on the lips.
Your boyfriend, as a result, won’t like the idea of you going alone to social events.