I suffer from comparison issues too. It’s so hard because even if that person is faking it I think to myself that I couldn’t even get it together enough to fake it, no one would believe me I’m such a mess. I find people like this to be exhausting because they are just trying to perform and being their audience is not very fun. I think you should avoid her, block her, do whatever it takes to remove this person until you are stronger. I know easier said than done but do your best. No point torturing yourself – it’s not like you otherwise have a relationship with this person except to be the listener and consumer of all her fabulousness.