What has happened could happen was all thanks to my Origin, Pride. The way it works is pretty simple, but also absurd at the same time; it is not something that one can explain with logic.
Pride is an Origin that turns its possessor snobbish. It is defined by the possessor's unwillingness to lower their head and admit their defeat.
In honesty, rather than being snobbish, it requires its possessor to be unyielding, but since people often develop an inflated ego when they have pride, they tend to act snobbish instead.
Naturally, there is a reason behind why the Origin "requires" its possessor to be snobbish. It is one of the requirements to activate the broken ability of the Origin.
Pride is an Origin that allows its possessor to gradually match the power of their stronger opponent. It doesn't just happen however, since the possessor needs to be fearless toward said opponent for it to work.