… I sent it to whoever sent it Hi .

You could make that a clear, friendly response like:

• “Hi! I just sent it to the person who sent it. 😊”
• “Hi! Forwarded it to the sender.”
• “Hello! I sent it back to whoever sent it.”
• “Hi there! It’s been sent to the original sender.”
• “Hi! Done—I sent it to the person who sent it.”

If you want, I can also make a few casual, funny versions that feel more personal and friendly.