i think you need some fresh air and be rational to yourself. It is absolutely normal to react like that in the circumstances you are in right now. My suggestions is after you parents go home, just spend time along for a day or two and let things process in your mind and then make a decision. You seem to have too many things in your mind right now (meeting parents after a while, et all). So don't blame yourself and just cool down. You need to be in normal situation and then decide. It would be good to apologize to your bf as well as he must be going through the same and might be feeling insecure because you are all aurrounded by your family. Just talk to him nicely and give him all the love you can ....