Aw, Rachel, I'm so sorry to hear that. *hugs and smishes pour vous*
When you say slipping away, do you feel like it's coming from them or coming from you or just happening? What I've found is that sometimes this happens naturally and the beauty of a solid friendship is the ability to not speak to one another for a while and then fall back merrily in step when joined once more, but to get to that state requires a little work. Maybe take a step back from it and take things one step at a time? Send out a text with a funny memory and see what the response is. Then maybe the next day ask them how they are without any major expectations. And if you can, try and find a time to get together and remember the good things you used to do.
But then also sometimes there are people that we can be friends with for a while and then we drift away naturally. There's scientific studies that say Facebook (and texting) is terrible because it prevents this otherwise natural process. It's hard, but sometimes in the end it's better to let people go.
All my love for you. Hey, it's tough to be 14 and feel like you're losing people you care about.
"Quand vous aurez besoin de Bahorel, capitaine, Bahorel est là! Je sais faire trébucher tous les chevaux du garde-corps avec une ficelle... Rien qu'une petite ficelle. Enfin, pensez à Bahorel du Café Musain!"