Hey there moosewithme. I'm so sorry to say that there's not a way that I'm aware of, at least not on the T-Mobile side. We don't store the content of messages, so unless they were backed up somehow through your device, I think they're gone. This would bum me out to no end, and I hate being the person delivering this news.
That said, there are definitely a few other threads on this topic, though. If you're using an iPhone, for example, one of our pillars made a great point here: is it possible to recover a deleted text message on iphone?. My colleague Chris pointed out on this thread: recover deleted text messages, that if you're using Google Hangouts the messages may be cached online! I hope one of those options turns out to be a secret weapon for you.