I'm sorry, she what? She drank your Lambic? To me, that's grounds for me kicking someone's ass. No one fucks with my Lambic. Sorry, having a moment..
I think her assurances to you are just lies. I don't believe she is okay with you two no longer dating. If she was okay with it, she wouldn't have had the hissy fit she had. If you really don't want to move again, so be it but I don't think its worth it to stay. You are just going to get more aggravation in the future.
Should you be celibate to appease her? Fuck no! As far as I am concerned, you are single and should be allowed to date whoever the hell you want. You are roommates, nothing more. If she's bringing guys home, then she should have no problem with you bringing girls home.