In his youth, you have watched Laxus was extremely kind, very attached to his grandfather Makarov, and greatly admired Fairy Tail. This, however, changed upon his father's excommunication, and Laxus' growing thought and suspicion that his fame was a result of being Makarov's grandson, and not of his own skills, made him eager to prove himself as a strong Mage in his own right.

Laxus was initially portrayed as arrogant, overbearing, selfish, and prone to make fun of his own comrades. He believed himself to be the strongest member of Fairy Tail, and looked down on those he considered weak. However, after multiple events happened within Fairy Tail, you realized that his attitude has changed. He seems far more light-hearted and serene, and apparently has grown fond of the guild in his current state. He was also willing to take all the responsibility of the crimes for himself, in order for the Thunder God Tribe to remain members of the guild, even encouraging them for the time being.

Somehow, you both saw each other weaknesses and accepted them. No one would ever thought Laxus could have a best friend but here you were. He definitely tried to push you away a lot but that didn’t stop you and that probably made your bond stronger in the end. You’re the best at calming him down when he’s angry or losing his temper and you’re the only person who gets to wear his coat and boy do you flaunt it.

Present

You were attending to another mission, while one of the enemy laughing and mocking Fairy Tail, making inappropriate comment on your body too. You were furious but before you could punch that dude, he was being knocked out on the ground by a single lightning punch.

Laxus body surrounded by lightning sparks as he spoke in a deep and intense voice: “I ain't got a clue what your goal is, but I'll hold you responsible for hurting my friends. My family is Fairy Tail! I will crush my family's enemies”