Selena Gomez does NOT take bullying lightly! The pop star was not happy when a cyber-bully made negative comments on Instagram, and made sure she knew! Keep reading to find out what she said!

The user told Gomez to "burn in hell with cancer," which understandably hit a nerve with Justin Bieber's off-again girlfriend.

She responded with, "Honestly, I don't speak up much because it's simply always taken out of context. But I don't take bullying well. I have seen too much to not say anything."

"The comment you left about cancer was absurd. How distasteful of a young woman. I have gone through that battle with fans and family members," she told user official.kerry, whose account has since been deleted.

"You can dislike someone but to wish something that could happen to you or your family is uncalled for sweetheart. You won't be winning 'anyone's' heart that way. Trust me. Educate yourself a tad more. God bless love. Be an amazing woman. You're beautiful."

We are so happy Gomez stood up for what's right, and handled the situation with class!

The "Come and Get It" songstress was recently spotted on a date with model Tanz Watson, following more Jelena woes. The pair shared adorable snaps together on their social media accounts, and appeared to be having a great time.

Pals Taylor Swift and Demi Lovato are over her Bieber drama; family even suggested she return to rehab earlier this month.

"She is a mess over what Justin has been doing to her, and how he has played with her emotions. She really is taking things hard with the Justin and Demi drama," a source told Hollywood Life.

We would love to see her happy with someone who treats her right!

Did Gomez do the right thing for standing up to that abuser? Let us know why or why not below!