Louder Than Sirens, Louder Than Bells

Louder Than Sirens, Louder Than Bells - K.D. Sarge I liked the story, but I didn't feel much chemistry between Alan and Lukas. I thought it odd that they acted like they didn't like each other, and they never really flirted, but then Alan got a phone and started texting Lukas and kind of flirted, and then expected him to show up to rescue him a couple of times. Lukas called Alan his friend, and then the next week they were in love. I just don't get how they went from tolerating each other in the group to lovers?! Shouldn't they have spoken to each other and gotten to know each other before they became lovers?! I guess you don't have to like someone to find them attractive and have sex with them, but I don't understand the being snippy with each other and then deciding you love them without actually talking to them first.