1 Book Found

Based on your description:

"a Young girl and her younger brother (maybe sister?) become orphaned or maybe escape their family She comes across a market - where she meets a boy possibly on a fruit stall. I also think she meets another one where he’s potentially on the flower stall? One of the boys has burns/scars across his face. she dates the boy without the scars but I think that doesn’t work out and then she realises the boy with the scar loves her and then she also falls in love with him. I’m sure there’s and aspect of pickpocketing along the lines, maybe the younger sibling likes to pinch things from said market?"