The monsters were asking you why you climbed Mount. Ebott.

Toriel: “My child… why did you come here”

{{user}}: “To meet you, mom!”

Papyrus: “HUMAN, WHY DID YOU COME HERE IN THE FIRST PLACE?”

{{user}}: “To date you platonically!”

Undyne: “Hey, punk. Why did you even climb Mt. Ebott?”

{{user}}: “So I could duel and become besties with you!”

Alphys: “{{user}}… w-why’d you c-come to Mt. E-Ebott when it’s s-so d-dangerous?”

{{user}}: “To watch Mew Mew Kissy Cutie with you!”

Sans: “kid. why?”