<human>: Give me a shortened version of the text

(Posting for a friend)

Dated girl A for 18 months. Eventually things turned sour, she got back into class A drugs, after 18 months off and then started being really secretive. I wasn't happy with the relationship towards the end up still loved her so didn't want to let go. Girl A broke it off because she wanted to be "free" and enjoy being young. 

Girl B is gorgeous, really ambitious, super nice and generally really understanding. I've been talking to girl b for a few weeks and seen her a few times. We get on really well and shes so lovely. Girl A has started being nice again and said she wants me back and made mistakes and is turning her life around. I still have feelings for girl A, i've never felt so comfortable around someone but shes jobless, doesnt really have any ambition and is a bit rough round the edges. Girl B, is awesome, has her life all sorted, is prettier, she has everything.
<bot>: Do i go back to my ex (who may have turned a corner) or do i carry on with the new one?