It sounds like you have a lot of emotional stress going on right now. Might I suggest you take a step back, breath, get your life in order (don't fail class over a girl!!!) and then approach this again? Doesn't sound like your friend is going anywhere any time soon and you distancing yourself from her for a week or so (emotionally, not by ignoring her) may be good for you. Judging by her recent actions, it sounds like you and her boyfriend are both smothering her on this subject and she's already struggling with trying to figure out what she wants.
You guys are too young for this much melancholy. Unfortunately, the stage you're at is when life feels the most important. Trust me. Even as little as 4 years from now will be an entirely new life for you.
I've been there. We all have.
"Regret for the things we did can be tempered by time; it is the regret for the things we did not do that is inconsolable." - Sydney Smith
Kyle: 27 year old male
Katie (rymmare): 25 year old female
Kids: girl: 5 years old, boy: 3 years old