How did Sally humiliate Brad?

In Home and Away, how did Sally humiliate Brad and why has he moved out?

She left him standing at the altar on their wedding day

on the wedding day she sad no in front of everyone!

she did not turn up for the wedding

she jilted him on the wedding day

She said she could'nt marry him in front of there mates and family..........-OUCH!!

she said she didnt want to marry brad. and he couldnt accept life without her as his wife so he left.

She told Pippa that she couldn't marry Brad as she felt that her marraige to Flyn would have been the only wedding/marraige she would have. Pippa had to tell Brad the sad news and then Sally was upset that Brad wanted to move away and not just carry on as before.
In turn , Brad was being a little harsh on the pupils who were 'on Sally's side'.
So, Brad was humiliated by being jilted and his sister let Sally know in no certain terms !

she left him standing at the alter because she said when she made her vows to flynn when they got married they were for keeps and if it wasn't for the fact that he died they would have still been married and that the love for brad wasn't strong enough to break those vows so he moved out because he said he had been humiliated infront of the whole town.

She never turned up for wedding and everyone was there waiting
So upset hes gone he was so hot. At least shes leaving though coz shes really starting to annoy me. cow

basically ages ago he asked her to marry him she didn't want to because of flynn (her husband who passed away) but then when she thought that she'd lost brad in the boat on the night of the storm she agreed to marry him but she didn't really want to. So then the day of the wedding finally comes and she feels really bad about it and the fact that she didn't want to get married to him so then everyone is waiting at the beach for the wedding to begin but sally says she can't go through with the wedding and brad says he wont take no for an answer and tells everyone that they came to see a wedding and thats exactly what they're going to get, but in the end she doesn't turn up and leaves him there in front of half the town really embarrased. She humilated him in front of everyone so he says to her im moving out, but she tells him everything and how she feels but he replies and says 'why didn't you tell me all of this before we decided to get married' and she is still in love with him but he says you dont do that to someone you love and packs his bags and leaves to stay with his sister rachel, who is also really angry at sally and shouts at her. Next week brad makes a decision about his and sally's future so don't miss out. Hope that kind of helped!