In Season 2, The Liars were so surprised to find that Jason had moved back into the DiLaurentis House.
What was he doing back in Rosewood?
They were even more shocked to see Jason throwing out all the things people had left as a tribute to Alison when she disappeared.
The people who used to live in the DiLaurentis house hadn't the heart to throw everything out, but Jason - her own brother - did? That just didn't make any sense!
The next day, Jason grilled Spencer about Ian's confession.
We knew Alison's brother would be understandably interested in Alison's killer, but Jason's questioning seemed really intense!
And after her chat with Jason, Spencer remembered a time when Jason was extremely angry with Alison.
Alison had taken something from his room and Jason seemed to REALLY overreact. What was going on between the DiLaurentis siblings?
Later on in the episode, the Liars saw that Jason had been doing some digging.
And at that point in the show, uncovered earth was starting to make us a little nervous!
Jason told the Liars that he was putting up a fence for privacy.
He wanted people to mind their own business.
The Liars wondered who Jason was trying to keep out... or in.
Was it Ian? Did they BOTH have something to do with Alison's murder? We totally thought they did!
It was a bit different when Jason made his return in Season 7!
This time round, HE was the one pointing fingers!
He ordered Mary Drake to leave.
Which we were left feeling a little conflicted about...
He just couldn't understand why Alison was letting her stay when she had helped Elliott!
We guess he had a valid point.
Alison tried to tell him that Elliott had tricked Mary Drake like he'd tricked her...
But Jason was having none of it -- and we weren't really sure where we stood!
Were you totally on Jason's side? Or do you think he should have let Mary Drake stay with them?
Let us know in the comments below!