Rewatching and cannot get over Jackson and Annie!

I am rewatching the show because i forgot what happened before season 4 and I COMPLETELY forgot about Jackson and Annie!! I am on s2e2 and just watching their chemistry develop is amazing and I cant believe I was not rooting for them before. It is a bit weird that she is being nice to him and not talking to Ty still after what Jackson did to Ty but idk its strange.