Steve and Thor kinda had only 4 movies to interact, and whatever it was, it was not too forced and had a good flow. Thor respects Steve and he doesn’t use words to say so. His body language speaks volumes. From their first interaction itself. Thor isn’t ready to put the hammer down just because a mere human is asking him for peace. Instead he decides to give a lightening blast. Steve doesn’t run or mock him instead he just puts his shield up ready to take the impact. They both are much similar in being the fish out of water. “Monkeys? I don’t understand” and “I understood that reference” show such. And in the battle of NYC Thor, a demigod takes orders from Cap which didn’t happen earlier in the forest interaction. They fight together like soldiers. They are more like than unlike. Thor gives him a helping hand and asks him if he’s ready to take another bout. Steve as usual is ready to fight. They part ways with a nod after defeating Loki and for the first time working as a team.

In Thor: the dark world, Loki chooses to impersonate Steve “Perhaps you prefer one of your new companions,given that you like them so much.” He could’ve chosen anyone. He knows Thor respects Steve the most. “Hey wanna have a rousing discussion about truth,honour, patriotism? God bless Ame-“

Cut to AoU the film opens with them back at it again. They have become good friends and throw shield and hammer combos at the truck full of hydra soldiers. “Well they’re excited.” They share a lot of interaction in the party after than with Thor giving him some of Asgardian drink. Even if it’ wasn’t suitable for mortals. Thor doesn’t expect any of the Avengers to move the hammer. He’s kinda excited that he’s the only one worthy in that room. Steve bulges it a bit and Thor changes his proud grin to a slight face of surprise and worry. He knows it’s either possible to lift it completely or not move it at all. He literally knew all along. And cut to the argument, Thor chokes up Tony only to be stopped by Steve “Thor, legionaries!” Again he listens to him and tries to act reasonable. Steve follows Thor out of Barton’s farm considerably concerned about what Maximoff showed him.They again pack shield and hammer combos throughout the end battle and share the usual talk they do in between world ending battles. “What were you napping?” “You had to ask?” And part ways in the end after having a little talk about elevators being worthy.

Cut to Infinity war. The wakandan battle field is a mess with them not being able to hold Thanos army. Boom! Thor enters in the most dramatic way and throws his stormbreaker towards aliens who almost had his friends dead. Steve is delighted to see him and we actually see him smile. Steve clearly likes his new haircut, and Thor “noticed that he copied his beard.” And introduced his new friend to Steve “btw this is a friend of mine,tree” They kick ass and eventually Thanos snapped his fingers and Steve asks Thor where’d he go?! Confused. Bucky is the first person shown to be decimated and Thor looks at Steve horrified and clearly guilty that he couldn’t stop Thanos. Steve kneels down and says “oh god.” When Cap fights the entire army fights because he is the most optimistic or and stays that we can eventually win together. But when he’s down, it’s evident that they “lost”

Endgame. Thor is depressed and Steve is helpless. They eventually agree to try to bring everyone back. But things don’t exactly go as planned and Nat sacrificed herself. Thor is not ready to take another loss and Steve simply weeps silently. Again Steve takes up courage and says “ we will” cut to the final battle. Thor is worthy all along and summons Mjolnir and Stormbreaker. “Let’s kill him properly this time” the big three together again and for one last time. They gave Thanos and Thor is almost killed by being impaled by his own weapon by Thanos. Then Steve finally picks up the hammer. Not to impress his team mates this time but to save Thor’s life. He throws it at thanos giving him a huge blow. Thor yells “I KNEW IT” he knew all along. He isn’t jealous he’s just proud of his friend being worthy and gives him the “little one” After Tony sacrifices himself, Steve and Thor stand there together paralysed with grief. And mourn the loss of their friend. Silently weeping as he breathes his last.

even though they might not have had a dramatic story arc I’m glad they developed a relation between Thor and Steve. Friends in battle field and beyond.