I've noticed my AH will use pets, house being cleaned/chores done/etc. as an excuse to stay around said house where drinking can be done. But I especially appreciate the dogs one. It's a good one I've heard many times.
Your post reminds me of the line from the song that goes "when you choose not to decide, you still have made a choice" (Rush, overplayed throughout my younger years on local radio). I too wish the stay or go decision were easier. I also think that giving yourself time to decide what you want, what you need, & utilizing a declared pause button/few weeks/etc. to do new things, in ways that make you healthier, educating yourself...is a great choice! If you start going to Al Anon, is it dangerous, i.e. will he physically lash out? What worse things will he do, than he's already doing, if he finds out you are going? A good meeting is worth it. I can't wait to return to a meeting. I'm sending you huge hugs.