So during S3 his motivation is established as wanting to take out his former team "Payback", and in doing so makes a deal with Butcher to kill Homelander. It's essentially a business transaction. Then his personal relationship with Homelander is developed, and it goes something like this.
- Soldier Boy doesnt like Homelander being set up as his replacement.
-The discovery that Soldier Boy is Homelanders dad sets up some sparks of an emotional conflict within Soldier Boys head but he persists with his deal.
-The season wraps up with Soldier Boy legitimately trying to kill Homelander because, as his father reiterated to him, he was a disappointment.
Then S5 comes around, and this happens.
-Ben threaten to kill him
-does his bidding by attacking butcher
-threatens homelander for "trapping him with the virus"
-didn't rly appear in ep 3
-happily goes with homelander to Fort Harmony to help him find V1
-tries to murder him through radiation exposure
-joins him again to get bombsite to give him V1
-considers killing him with Mr Marathon, then changes his mind and murders everyone there because... only he can piss off homelander?
-goes with him AGAIN to find bombsight
bombsite
-punches homelander and leaves for showing Stormfront in her coma state
-GIVES HOMELANDER THE V1 BECAUSE STORMFRONT LOVED HIM? ESPECIALLY CONSIDERING THE LAST EVENT THIS IS WEIRD.
And in the last 2 episodes he'll probably do this around 4 more times.
If im misunderstanding his character completely please do correct me but if not, tf is up with him?