Yeah, wot Mod Brian said.
Alpha Male didn't make the gains, your exercise and diet made the gains, Alpha Male just helped you along.
It takes a lot less effort to maintain gains than to make them the first time.
So you might not be able to train as hard as you have been, or recover as fast, but you won't need to do so, to maintain your gains.
If you sit around eating junk and not exercising, it will still take quite a few weeks to lose your strength levels, and even longer to lose your muscle.
And even if you lost all your gains from sitting on you ass for 6 months, you'd re-gain them real fast, even without Alpha Male, if you start training again. Takes much less effort to make the gains back again, than to make them in the first place.
So don't worry, just get on with it.