I'm shocked at some of these resposes. They could be right, of course - there's a lot we don't know. But surely that's a reson to be cautious not just blame the OP?
For eg. my husband is lovely. just lovely. but he has a temper could mean anything from a lovely but very troubled bloke who's aware of his difficulties and is in longterm therapy trying to work on them, to an abusive arsehole who's threatening and potentially violent to get his own way and avoid reproach but is "lovely" now and then to stop the OP leaving (and was consistency lovely at the start to reel her in).
There's a few unknowns that could shed a completely different light on the situation. For a start - what does the OP mean by "slipping back into bad habits"? Secondly, why is she emailing him? Is it because he refuses to talk about anything so she needs a way to clearly communicate? OP has alluded to him not talking about things and we know he refuses to go to counselling so it's not out of the question.
On the subject of refusing counselling - why should the OP (and women in general) have to put up with this crap from men? Having to make allowances for their issues whilst they don't bother trying to solve them. Meanwhile we're supposed to applaud the bloke for walking away rather than getting really angry (good in the right circumstances, but could also be used as a way to avoid talking about anything, ever), whilst the OPs frustration/upset/difficulties with calmly waiting to talk later never? are criticised and seen as completely irrational. Because of course the man's emotional needs come first and they need lots of encouragement not to be an arsehole even when they are demonstrably not trying very hard to solve any issues.
I've done the running after thing, but only with dickheads who treat me like shit, expect me to pander to their issues whilst lecturing me on how shit I am and how they know best, and crucially, who I have tried to talk to reasonably and they just shut it down any which way. It's the desperation to communicate with someone who refuses to do so, it literally makes me go insane. Ordinary disagreements with non-controlling people are completely different.
Also, and this could be pure projection, but the "good luck finding a perfect man" set an alarm bell ringing for me. He could be completely justified in saying it, but I've only heard comments like that in relation to things like wanting the man do an equal share of the housework or treat their partner with respect, or even not be abusive... it's a bit "you won't get any better than me, so no point leaving/succumb now", isn't it?
Again I stress we don't know the reality of the situation but I'm concerned that assumptions are being made.