Head to route 2

After that ordeal with your mom, you return to Aquacorde town and meet up with Serena and Shauna.

"Oh hey Calem, Shauna was just telling me what happened earlier after your battle." says Serena. "Seriously, you better not do that again! I'll get stronger and have my **** for leaving me humiliated like that!" You're not very scared of her, you don't think you'd ever lose to Shauna. The three of you catch your second Pokemon, with yours being a Fletchling. All three of you head into Santalune forest where you meet up with Tierno and Trevor.

"I don't want you doing something like what you did to me again, so I'll follow you through the forest." says Shauna.