Feeling Hurt at Bridesmaid

Hi,

I have chosen two bridesmaids for my wedding this upcoming June, one who I have been friends with all through secondary school and have met up regularly with since we left (L) and another who I have been friends with since we were 4, so for 20 years now and although we drifted apart, grew closer together a number of years back and have met up with regularly and with our partners etc. (E). Before I asked E to be my bridesmaid, she hinted and said if I was looking for a bridesmaid she'd love to be one and I'd obviously be hers. We'd always talked about it since we were kids and have gone through many major life events supporting each other such as the death of her mother, during which time she was also close to my parents. She suggested at this meet up only last year that it was a done deal that we'd be each others bridesmaids. I was always going to ask her anyway so did a bridesmaid proposal last June and she got so emotional and said she'd told all her family I was getting married and how she was so hoping I'd be her bridesmaid and again reiterated that I'd be at her wedding too - she's been hoping for an engagement for a while. Fast forward last September she gets engaged and starts involving me in all her wedding planning meet ups and chats and was talking about the number of bridesmaids she was having etc. Yesterday she said she'd booked the venue and asked if we could meet up to discuss my insight into planning and how much I'd spent on things so she'd have some idea. So at the meetup today, she comes out and is talking about all her bridesmaids, other friends from school but who she's known a lot less time than me but are in one large group, I've drifted from the other members of the group for various reasons. Then comes out and says she hopes its okay but me and L won't be bridesmaids as it would bump the numbers up too much (her and L have never been friendly so not sure the relevance of that) and tagged on that I'd already be married by then so I don't really need to be a bridesmaid! Then proceeded to tell me about the 5 bridesmaids she has chosen, all friends no family and also increases the blow by saying that another two of our friends from school were going to be bridesmaids but she's decided not to ask them as they'd been ignoring her/not making effort for the past year for various personal reasons. Needless to say I was so hurt that not only had I not been made a bridesmaid as she had promised numerous times but she'd proceeded to lay out a list of which I was quite clearly right at the bottom. I feel very hurt that I'm paying for her dress /hotel room / hair and makeup and I seem to value her as a much closer friend than she values me. She has also made lots of empty promises in regards to organising my hen party/ helping out with the wedding and I just feel very hurt by the whole situation and it doesn't seem right that she'll be involved in all my wedding planning and events and I have been excluded from hers. Just looking for some advice on how I should proceed, sorry for the super long post!
Thank you x