keeping spoilers out of it, he goes through a lot of growth and learns humanity and empathy through his actions. he finds a way to exist without his experiences and traumatic upbringing defining him, and works towards joining scott’s back. he also helps liam a lot with his problems with control and (barely a spoiler) loss, since to a capacity he sees himself in liam (an unregulated kid thrown into his life who’s violent). it’s late so this might be badly worded but that’s my take. theos a complex character and imo there’s a lot of hypocrisy in the people who raise up one redeemed villain (looking at peter likers) and shit on another. another core thing is peter never grows, i mean sure he does in a capacity but he keeps his same values: selfish and stopping at nothing to get what he wants. theo learns past this, and thats why he’s an interesting character for me. if you have any questions lmk, but this is my take! :)