Yes! Let's all get very invested with total strangers and do things we dont want to do, because relationships!! They are the most important of all things!
It takes a good year or so to know someone well. Investing at 6 weeks means you are investing in a fantasy, at best. The fact that some people manage not to ruin their lives by investing in a fantasy, doesn't make it a good idea in general.
I know women are typically encouraged to think as little as possible, and move as quickly as possible, when it comes to relationships. I put it to you that this is not in their best interests.
In my observation, folk who have little to offer in a relationship tend to get the most emotional about how "relationships these days are so [insert criticism]". The fact is though that things have changed in favour of those who have more sense. Going slow and keeping your wits about you is better for most people. It's not the stone age. We dont need to couple up and reproduce at the speed of light anymore.
If you only manage to get into relationships going because prospective partners haven't stopped to think, I'd say that's an issue, not.something to strive for.
OP, you're ok to not want to do certain things. You were clear and honest with the guy about it too. It does sound like he is, at best, on the insecure and bombastic side. It also sounds like that's not something that will fit with you. I hope you dont bother too much more with him. If you two were well suited, youd not feel as you do. all the best.