What business have you getting upset about a physical act between two adults when you acknowledge that physical act is meaningless ? This is the crux of the whole discussion
Please see previous, repeated comments.
But you're missing the crux of the conversation. It is way more simple than that.
YOU place a great link between love and sex. That is 100% fine.
I don't place a great link between love and sex. That is 100% fine.
Are you seriously of the opinion that your way is right, or maybe, just maybe, do you mean "right for you"?
I see a lot of angst and distress regarding the ending of your relationship - you used the word "heartbreak".
When my 14 year relationship (of which 9 years were married) broke down there was no angst, no heartbreak. There was a healthy regret that it hadn't worked out and for what might have been, but we remain close friends and co-parent really successfully.
He has gone on to marry again, I haven't had a relationship since the marriage ended.
We are both really happy with our choices.