My take on it. Idon't think the Gf had sex with gavin after johnny left the gym as he wasn't at school the next day so i think he was hurt some way. It has been mentioned that the Gf will change someone if she wants to so i think she is working with the Grandmother after seeing how rich she is and promised something from her. When the Gf dumped the bully he got angry and practically raped the mother to gain his control over her as he lost control over the GF.
if theres one thing I agree with its that the grandmother ABSOLUTELY promised something to the girlfriend
Im just questioning what and how.
As for gavin not being at school the next day that could be for any reason
knowing hgcs history
Always assume the worst will happen to the MC
APBLU is a perfect example of this especially with that recent ending on aya edition
I think the worst case scenario for johnny in this case is not only being abandoned by his mother for Dexter but both the girlfriend and grandmother dropping Johnny
this is a shot in the dark but im guessing either one of 2 things will happen
A. the grandmother and girlfriend will eventually drop jackson as (and this is a big assumption) what if Johnny ISNT needed for whatever end goal they have in mind, perhaps thats where gavin comes in and fills that role, I understand wanting to think the grandmother has johnny's interest in mind but at the same time,9 times out of 10 everyone in a HGC story is a abhorrent piece of shit or spineless so....Im not holding my breath for her
B. they DO need Johnny around but they clearly wont care about him fully, my guess is that they'll keep him around and perhaps maybe even mind break him in the process via Manipulation etc etc
or there is option C
going off what Dex said its clear he and Kate are likely to do something to get the grandmother out of the picture So whatever that is could vastly change the story lol