So many addicts are insecure. The drugs can help them with a temporary ego boost.. but underneath they are insecure about everything.
Since you state he is using still, you can't expect him to act "normal".
On a side note SOA is an amazing show.
And applaud you on watching a fictional show that doesn't glamorizes drug use too much. They have so many active in recovery cast members... and attempt to portray the real side of drug use.
And of course Jax is very easy on the eyes.. lmao.