Women are not the romantic gender, men are.

The studies you provided are nonsense IMO. The "romantic beliefs" scale solely seems to be words of affirmations and feelings alone. None of this data reflects demonstrated behaviors or actions within a relationship or within the early dating stages. All of the links that you supplied reference the same exact Romantic Belief scale hypothesis from 1989. Which are just THOUGHTS AND FEELINGS, not demonstrated or measured behaviors.

“love at first sight”4—one recent survey of 100,000 adults found that 48 percent of men claimed to have fallen in love at first sight, while only 28 percent of women made such a romantic claim.5 In addition, men, compared to women, tended to place a greater emphasis on the importance of feeling passion in their relationships.6

None of the data demonstrates follow through with tangible or actional behaviors exercised or actively practiced within a relationship. And frankly, I haven't been able to find any modern data on the subject since 1997.

Feeling ideation regarding a relationship or the prospect of a relationship isn't a display of romantic behavior enacted within an actual relationship. Frankly, it sounds as if men are naïve and ignorant regarding the reality of what romantic relationships actually are. However, I haven't been able to find ANY recent data on the subject.

All data that I have found is that men are less forgiving than women in relationships, especially regarding infidelity. Which proves their ideation of "working through anything" from the study that all of your articles reference aren't actually carried out through practice when men experience them in heterosexual relationships. The study that was referenced in your links said that men are more likely to believe the following:

If I love someone, I know I can make the relationship work, despite any obstacles,"

Despite the reality being that men are less likely to forgive women in relationships, especially regarding infidelity, even though men are more likely to have outside relationships than women.

https://1stnews.com/men-or-women-who-is-less-likely-to-forgive-a-cheating-partner/

https://www.sciencedaily.com/releases/2008/03/080303145228.htm

And I actually found a study from the 1960's that actually supports my hypothesis.

A study undertaken in the mid-1960s found that men are more "romantically" oriented (and less romantically compromising), and that women are more "realistic" and willing to compromise—64 percent of the men, but only 24 percent of the women, said that they would not marry a person who possesses all the qualities that they admired, but with whom they were not in love.

https://www.psychologytoday.com/us/blog/in-the-name-love/201204/do-women-make-more-romantic-compromises-men-do#:~:text=A%20study%20undertaken%20in%20the%20mid-1960s%20found%20that,but%20with%20whom%20they%20were%20not%20in%20love.

Even in the link you provided the second paragraph literally says:

But research suggests that the male attitude toward love may actually be more romantic.

In other words, men on average are more delusional about relationships than women and women are more realistic and levelheaded about relationships than men.