Oh Mena....I'm sorry.
I'm not too sure what you should do, but maybe you should talk about with your friend, Mayra. I mean....doesn't she realize that this girl Mireya is trying to separate the relationship that you two had? First off...I'm not trying to be mean, but if Mayra was really your best and good friend, she should be able to see the dark side about Mireya and also care about your friendship too and try not to lose that. If she doesn't even acknowledge you anymore because of Mireya, then I'd say she's not a very good friend. If you talk to her about this situation, she should be able to know what you're talking about, since she's your best and long-time friend, right? Well, if she doesn't, then I would sadly have to say she's changed. She's not the same person she used to be. People tend to be that way.....when somene comes along that's more evil and able to have greater control over people, that person tends to change because of the bad influence of the "new friend". If Mayra won't listen to you and start getting annoyed at you, then I'd say just get mad at her and forget about being her friend anymore. Don't start fighting...fighting doesn't always solve the problem. Unless you really feel like you should, then go ahead, though I don't think your friend Mayra would be too happy. If you don't want to make her mad, then I'd say don't fight. But, if Mayra suddenly became very....snooty and different, then I'd say (though I still won't) go ahead and fight the girl. Anyway.....I don't know what else to say....I feel your pain and anger towards that Mireya chick. I hope this helps you.....I'm sorry I can't actually be there and help you out.
I hope everything goes well for you.