Hi everyone I've been lurking for a while and often impressed with some of the insight/advice people give. This is my first post so bear with!
I have been in what I now believe to be, at times, an emotionally abusive relationship. (Sulking, Ignoring, swearing, shouting, name calling, untrue accusations (and then being called a liar however many times I deny) addiction and anger issues, slamming around house to be intimidating) It is now at an end but we still live together and this is hopefully getting sorted soon. Anyway that is not the point just background.
My question is - Can your body become used to/crave the anxiety / stress? and does anyone have info on this? I've tried to google but can't succintly put in to words what I want to google.
I had such a lovely calm Christmas break and caught up with friends/ family and I felt calmer and happier in myself (also due to time off work/not rushing around I expect) I barely saw or spoke to my ex. Have not seen him this week until last night. Yesterday daytime I just felt a bit glum and down/flat for no particular reason, then he came in in the evening (drunk and/or stoned) and started going off at me shouting and swearing/making accusations and threats. Suddenly my heart was beating so fast and kept going for several hours as he kept coming to my room to have a go at me. BUT it did mean I didn't feel glum anymore and still don't this morning - i'm wondering if it's the adrenaline kick??
Does anyone understand what I'm trying to ask or know of any books/ web links that explain?
I think I'm worried that my brain is used to having occasional 'dramatic' situations. Or maybe I'm completely overthinking the whole thing as I can't expect to feel happy all the time. Just so you know I'm not a drama seeking person and have no other relationships like this. I look forward to being free and calm but worry I will feel a bit 'flat' when things are too calm (not that I want drama I just worry my body has become conditioned to expect it!) or maybe I am overthinking and overworrying which sounds very much like me 
I'm off out now so will check back later. Look forward to any thoughts people can offer! thanks in advance!