Its more based out of reality than bitterness. Reality isn’t always pleasant. I’m just a realist, but to people like you, realists come across as pesimists. You just don’t like what someone is saying so you declare it something bad you can then rationalize ignoring.
And I could also say I can’t take what you say seriously because you’ve drank the koolaid that society and music and hollywood have dreamdd up about romance and relationships. I don’t wear rose colored glasses. I see whats happened in the last 60 years and I don’t sugarcoat things.
And maybe, like many men, your little head got the better of your big head, and you made lousy choices - but you have to blame it on the woman in the case.
(My belief in ‘romance’ worked out very well for me. I’m truly sorry that you’re so miserable. But being miserable because of a bad experience is a choice, too.)