There is no "ignore" button in this situation. This isn't an "exception has occurred" type error. I'm pretty sure there's just nothing scripted for confessing to Lyrae. In fact, I don't think any endings were programmed. Sucks, because this game was pretty good but then it just cuts off there.
An exception randomly occurred. I chose the Delinquent thing then slept through class, so that might have something to do with it (judging by the fact that it crashed after I slept through class on Day 1). And it says that Line 165 in the script fucked up or something, if that helps.