>>6838024this is incorrect, the rest of your existance is what you make it.
you can choose to be happy
you can choose to be sad.
It seems difficult
It seems you're just sad and have no choice but to continue in regret.
What's done is done, and regret is a waste of time and energy.
You'll be fine with or without a significant other.
God Bless, and keep smiling, nobody's going anywhere.