When you use the term "saviour," you really can't use it lightly. It's bigger than hero. You wouldn't call Captain America a saviour, but there is one man who always comes gets referred to as one. I'm talking about Jesus. Jesus is a saviour, no doubt. He saved us from our sins. Whether you are a devout christian or not, you can understand the weight of that action. That's a huge weight to put on one man's shoulder. That's why if he was really your saviour he would have made sure you spelled your tattoo correctly.
Maybe the reason why he didn't have your back in this instance is because you invoked his name on your ta-tas. It's more than OK to love Jesus, but maybe the best way to love him isn't on your body parts. Especially those body parts.