YOU SAID:

well today ma bestie got mad at me for flirting with her brother.

INTO JAPANESE

よく今日、私は彼女の兄弟といちゃつくために、私に腹を立てました。

BACK INTO ENGLISH

Well today I got mad at me to flirt with her brother.

INTO JAPANESE

今日、私は彼女の兄弟と浮気することに怒った。

BACK INTO ENGLISH

Today, I got angry at cheating with her brother.

INTO JAPANESE

今日、私は彼女の兄弟と浮気に怒った。

BACK INTO ENGLISH

Today, I was angry with her brother for an affair.

INTO JAPANESE

今日、私は彼女の兄弟に関係して怒っていました。

BACK INTO ENGLISH

Today I was angry in connection with her brother.

INTO JAPANESE

今日、私は彼女の兄弟に関連して怒っていました。

BACK INTO ENGLISH

Today I was angry in connection with her brother.