My best friend's bad crush... on me (boyxgirl)

Aiden and Riley have known each other their whole life. Their mothers were friends since before their birth, so they already met as babies and played together as toddlers.
Meanwhile, they go into the same class at high school and are inseparable. They tell each other everything; at least that's what Riley thought.
Just recently she told him about her crush on a guy of their grade, but then her whole life changes when she finds out that her best friend is madly in love with her.
Aiden can't hide or hold back his feelings anymore. He finally wants to be together with Riley, touch her and eventually marry her; even if that means the risk to lose Riley's love and trust.