Steve is Tony's ally, teammate, friend and occasional rival in the Avengers. As for their social relationship, they might as well be considered as "frenemies" due to their personality clashes. However, despite their differences, they truly care for and respect each other.
Their friendship could only last so long, though, with much of Phase Three having the pair opposed to one another. Iron Man and Captain America's falling out might be the primary plot of Captain America: Civil War, where Steve Rogers may have given Iron Man every reason to be furious at him by the end of the movie.
The start of the conflict between Tony and Steve was caused by the fact that they didn't listen to each other. Instead of letting the other one explain his attitude, why he believed he was doing the right thing, they clashed about the Accords from the start.
He most definitely loved both Peggy and Bucky, with the latter considered to be in a romantic sense as well for many fans. While Peggy was his actual love interest, Steve's love for Bucky was such that they can be considered each other's true loves, even if it's seen in a platonic context.
Sharon Carter is a secret agent and an ex-field agent of S.H.I.E.L.D. under Nick Fury. She is also a love interest of the superhero Captain America / Steve Rogers. Sharon Carter was originally the younger sister of Peggy Carter.
Tony Stark & Captain America: Are They Really Friends? - Explained
Who kissed Steve Rogers?
Lorraine was reading a newspaper which headlined the Liberation of Allied Prisoners of War when he came to speak to Phillips. She tried to seduce Steve Rogers by kissing him, claiming to be thanking him for his bravery on behalf of the women of the country, but was interrupted due to Peggy Carter's interference.
Bucky is the closest thing Steve has to family even before he falls out of the 1940s and ends up in modern day America. He's far more than just a surrogate brother—he's Steve's last piece of home. In a very real sense, Bucky is home.
Although he had long been skeptical of the organization's practices, Steve also knew Peggy to be a woman with a strong will and sharp mind—if she believed in the good that the organization could do, then her ideals had to be worth fighting for (even if he would go on to dismantle the organization following the HYDRA ...
At the end of Civil War, Cap wrote to Tony and told him he understood why Tony did what he did, and even apologized to Tony for his role in the breakdown of the Avengers and keeping the truth about his parents' death secret.
The brilliance of the story is that Tony and Steve are equally right and wrong. There is no clear right/wrong in the scenario that was presented. Both Tony and Steve are doing what they believe is right. Strong arguments can be made for both of their positions.
Steve truly believed his way of thinking was right, while Tony could only see his side of things. They never backed down from their own beliefs, thinking their way was the only way, which caused a lot of tension, not only between them but The Avengers as a whole.
During Tony's first conversation with Captain America since 2015's "Civil War," Tony gets very emotional and gets mad at Steve Rogers. He puts some blame on him for running away and not wanting to register as a superhero with the government to possibly prevent the Thanos snap in "Infinity War" from happening.
James Buchanan Barnes is a fictional character portrayed by Sebastian Stan in the Marvel Cinematic Universe (MCU) media franchise—based on the Marvel Comics character of the same name. Barnes is childhood best friends with Steve Rogers and serves alongside him in the Howling Commandos during World War II.
In Captain America Vol 5 #10, Earth-58163 is temporarily merged with Earth-616. In this universe, Steve Rogers and Peggy Carter marry but later divorce for unknown reasons.
In the final minutes of that movie, Steve Rogers travels back in time to find young Peggy and live out the rest of his life with her. We know from Captain America: The Winter Soldier that Peggy got married and had two kids, and Endgame seems to confirm that her unseen husband was actually Steve Rogers post-time travel.
However, it's more likely that Peggy Carter's innate strength and training before taking the Super Soldier Serum made her more powerful than the main-universe Steve Rogers.
The idea of Captain America not being a virgin is not bad in and of itself. However, the how and when it happened ultimately hurts Steve and Peggy's MCU romance. Captain America losing his virginity to a USO girl in 1943 means that he did so while very clearly having strong feelings for Peggy.
What is the age difference between Peggy and Steve?
Margaret Peggy Carter was born in 1921. That would've made her twenty three when she met Steve Rogers. She was three years younger than Steve Rogers when they met in 1943. Peggy Carter was obviously an intelligence prodigy.
Who was Captain America kissing at the end of Endgame?
Steve Rogers' kiss with Sharon Carter may be weird after the events of Avengers: Endgame - but it's not incestuous. In the MCU, the great love of Captain America's life was his beloved Peggy Carter.
Iron Man also strongly retaliates against Barnes after finding out that the Winter Soldier was responsible for the death of Stark's parents while under HYDRA control, and that Rogers hid the information from him.
Bucky Barnes, like Steve Rogers, has lived for several decades due to cryogenic freezing and the super-soldier serum. Bucky's life expectancy could potentially surpass Steve's 116 years, depending on circumstances. Despite outwardly aging at the same rate as Steve, Bucky can still live for at least another 80 years.
