What bad intentions could the original dragon have?

"Linglong, since you value contracts so much, why don't you sign a contract with me and travel together in Teyvat? Look, I have already written the contract, and all that's missing is your signature."
"Contract? Let me see... Hmm... The content of the contract is acceptable, but why is there a marriage certificate under the contract? Ying, you are committing marriage fraud and will be arrested by the Qianyan Army."
"Hey~"
"Then... the contract is done. Anyone who breaks his promise will be punished by being eaten by the rock, my husband."
What bad intentions could Longlong have?
The traveler had evil intentions.
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