Be sympathetic, but don't be a friend, or at least don't be a friend who tries to extract information from her. Just speak and offer assistance if you can. If and when she is ready, you might as well do it now. Remember that just because you like her doesn't imply she owes you anything. Treat her like anyone else after their heart has been broken. The best way to comfort someone who has just lost someone they loved is by being there for them- physically and emotionally. Try not to ask questions about what happened, but instead let them talk about their feelings. You should also try not to bring up the subject of them getting back with their old boyfriend or girlfriend, even if they do. This shows that you are still interested in them and that you believe they could find another person who can make them happy. If you have some time before they need to go back home, take them out for coffee or tea. Showing your interest in them will help them feel better about themselves and give them hope that someone else may love them someday too. Finally, remember that you were only human too. Breakups are hard no matter who does them or why. Give yourself time to heal too. Sometimes it takes a long while before we get over someone. If you still care about your ex-love one day later, then maybe give us another chance.