What opening call (Beginner Question)

Thank you for your help.

Someone used the attack against me and I was black.

I used the sneaky queen move you told me about today and won the game.

Very clever. Amazing.

I see it says "C68 Ruy Lopez: Exchange Variation" in the moves. Thanks.

Lesson # : Never take material without development your pieces

Notice that White made winning for you easy by playing 9. g3

Here is an example of good black play