you dodged a bullet.
If she went all Meryle Streep because you said you'ld give it to her tomorrow and so she started dropping classes, this is NOT someone you want to mess around with. The first time you forget some weekly anniversary or got her the wrong color of flowers or just flat out misunderstands what you are saying(which she just did already) will turn into Pearl Harbor on you. You'll never see it coming and you won't realize it happened until everything around you is on fire.
Count your blessings and run away and hide.