Short and simple post with a new account because I dont use reddit;

Basically went back to my neighborhood gym today because I did not feel like driving 10 minutes to my normal gym and there was this attractive girl there. After us exchanging eye contact for some time and me finishing my workout I decided to chat to her for a bit and found out she has not been in America for long and her main language is portuguese (a language which I kinda really wanted to learn) and she is currently learning english (she was born in brazil). I decided to use this to my advantage and suggested we should help each other learn these language together which I thought was a good idea as she only lives 3 minutes from me.
I told her to give me her number and we exchanged numbers and I told her we will meet soon. Throughout my whole time talking to her I held strong eye contact and smiled a bit, she did too. Before she gave me her number I asked about basic stuff like do you like it here, how long you been here for, and what do you do. She mentioned a husband which made me feel weird but I continued to talk, hugged her then left. How do I learn a different language while fucking a married woman?

TL;DR: Went to the gym, saw a hot girl and talked to her. Got her number and found out her language is portuguese and she wants to learn english and I want to learn portuguese. Say we should help each other learn. How do I bang her (shes married) while also learning portuguese?

extra info; I dont approach often, been lifting for 2 months, turned 18 in June