Hmm, like what? 

He might not be that annoyed, really. He only said he would take the potion, but he hasn't done it yet. So far, Alexi is "ahead" on the trust game. On the other hand, if he's still shackled, he's still being "forced" to do it in a sense... I don't know. It's late lol.

Do what you want and I'll stop overthinking it. :-)