Why you might like it: Readers often recommend it alongside Stranger Than Friends for the tension between friendship and attraction. Go in for the messy feelings and romantic push-pull.
Two childhood best friends bond over baseball, but their familiar relationship starts getting complicated when one of them begins dating someone else.
Why I think you'll like it: The jealousy and confusion are right in your preferred territory. One friend has to make sense of feelings that don't fit neatly into the friendship he's always known.
An adult BL romance with messy feelings and a protagonist forced to confront what he wants and what his feelings really mean.
Why you might like it: It has the kind of awkward, sometimes ridiculous emotional denial that can make a man questioning his feelings for another man so entertaining. It isn't as direct a childhood-friends match, but the sexuality-confusion angle is promising.
Similar name, nice intro
4 Week Lovers