But also the fact that you were afraid to shut the door on an awesome person. I guarantee you that if you had told this woman "sorry, I am not ready for an R right now", that in a year or two or whenever, when you were ready to date again, there would be other awesome people out there to meet. The fact that you think this woman is awesome in such a short amount of time has me wondering if you went from one over-attachment (your EX) to another (your GF). You've known her for what can be measured in weeks, and you are already talking like you are ready to marry her and have kids (or maybe in the reverse order!).
Absolutely. If you truly believe you're a man of high value, your fear of losing a woman of high value shouldn't be too high, because there are many out there, and there will be many out there in a year. Committing before a first date smacks of a scarcity mindset, fear, and low self-esteem. Low value.