Finding love day

I've been trying to decide who I'm going to ask to be my valentine. To be honest, I'm not that impressed with the two boys in my class. I do have my eye on this older boy Theo. He's actually the brother of my friend Leah. I'm slowly learning Theo and me have a lot in common. We both like to climb. I overheard his mommy telling my mommy that Theo climbed on top of the roof of their SUV. That's so cool! We also have the same taste in nap mats. He has the exact same robot one as me! I'm not sure if he notices me, especially because he is in the downstairs day care room. Would it be weird for me to ask Leah to mention me to Theo?