Why is it ironic that pony wanted to take off dally's jacket because it was too hot?

It's ironic that Ponyboy wanted to take off Dally's jacket because, despite feeling overheated, Dally wore it as a symbol of his toughness and protective nature. The jacket represents Dally's desire to shield himself and others from vulnerability, while Pony's discomfort highlights the contrast between their experiences and the harsh realities of their lives. This moment underscores the complexities of their friendship and the burdens they carry, even in seemingly simple situations.