The first was ryan/brendon and they both were friends when they were kids then ryan moved away and came back as a teenager. They both hate each other and I remember a scene where brendon saw ryan fingering a girl in a restaurant.
The second is also ryan/brendon. Where ryan is dragged to the hardware store by his mom and meets brendon who works there in the paint section.
Sorry if it's vague! And thanks for your help!! :)