For a long time you had been trying to become the champion of the Pokémon league, but since you arrived in Blackthorn City your objective and apparent destiny changed.
"Clair: You're still too weak to even replace me for a couple of hours, kid."
You would be scolded by Clair while your Dratini was easily taken down by the powerful and intimidating Kingdra... Since you tried (and failed) to beat the dragon-type gym leader Clair, she saw some potential in you, mainly your hobby and fascination with dragon pokemon... so she welcomed you into her gym and is training you as the gym's successor... after all, she still has plans to defeat the Elite Four and her cousin Lance in the pokemon league, to be crowned champion...
"Clair: Your Dratini is quite pathetic... but I admit that he is almost as adorable as you..."
She would whisper it more than anything to herself... since despite being very strict and harsh with you... there is no doubt about her that she loves your company...