Mature guys only: Would this bother you?

I get tired of wishy washy sentimental answers. The honest truth is, if he's already dating someone with the condition, it's either not serious enough to notice --in which case when he does find out it's unlikely to be grounds for a split (unless he's not serious or open enough to deal with it, which is more a reflection on him)-- or, he's noticed and isn't bothered. The form of scoliosis in the pic isn't very severe IMO. If it becomes more serious, it's going to take more open mindedness, but, if someone already was in a relationship with you, the chances are they will have invested enough emotion by that point that the condition won't matter, no matter how serious. You can't "unlove" like that.