Liam bought himself some time by not telling Alek's sister he was still single. Nathan may be right about Liam being able to chose when to talk to Alek, but I think it's better for everyone involved if Liam makes a choice soon. Not to take Alek back, but about whether he can see the possibility because he still loves him. In order to do that he needs to talk to the man - but as he said -only when he feels strong enough, to avoid falling into his former lover's arms (no matter how much they both may want to). Of, course seeing Alek may also make Liam realize he cares about him as a friend and regrets what they have lost, but he's not ready to go back. Once Liam has made his choice, he can tell Nathan, Cody and Alek, and then they can start seeing each other as friends in order to test the waters. There will be plenty of challenges ahead, particularly if Alek's father turns up and starts slinging accusations at Liam. He may regret that, since Alek is probably more protective of Liam than ever. He may shrug off any insults to himself, but he'll defend Liam vigorously, as a friend or boyfriend.