We're in a very similar situation, Paul. My Dad died 6 years ago (of a stroke at 65) and my Mum very much expected me to become her companion in his place. I was always very close to my parents, particularly my Mum, but I made it clear to her early on that it wasn't an option. I have a stressful full-time job, plus a husband and two daughters. My Mum is an only child and her parents had gone into a nursing home just before my Dad died and have subsequently died. My girls used to go to my parents' house before and after school (they're now 22 and 19). My Mum had led a charmed life, but everything came crashing down around her at the same time - my Dad died, her parents died (within 2 months of one another in their 90s) and my girls grew up and no longer needed her. The friends she and my Dad socialised with (3 couples) all moved away and my Dad's sister (probably my Mum's best friend) died within a few years of my Dad (at 60, also of a stroke). Perhaps unsurprisingly, my Mum has suffered from severe depression ever since and my life has changed beyond recognition. I do have a brother, but he lives 200 miles away, so he isn't around to share the burdon.
Anyway, that's just a bit of background, but my purpose for posting is to say that you really need to let go of any sense of guilt or duty (or whatever it is you're feeling) and just do what's right for you. Your m-i-l (like my mother) sounds very manipulative. Not in a nasty way - I really do love my Mum and she has many good qualities, but she has a way of getting her own way - always has. I'd rather have someone who is direct than someone who's contriving. I'm sure my Mum doesn't mean to be like it. In fact, both my Mum and Dad were very controlling (but at the same time very loving) and I was 38 (I'm 46 now) before I had an epiphany and told them they couldn't do it any longer. Funnily enough, it was a Florida holiday that sparked it. We'd booked a trip and I'd been dreading telling them. I'd put it off as long as I could - we were about a month away and I'd been stressing about it for at least a month before that. My Mum phoned one Sunday and I knew I had to tell her. It's still very vivid. She started on, as I knew she would - how could we afford it? (I've worked full-time in a good job since I was 18), what about the flight? (my Mum is a nervous flyer - something she's passed on to me), why did we need to go again so soon? Not once did it seem to occur to her that it was booked and (as in the past when we'd had exactly the same conversation) we weren't about to cancel. I think the weeks of trying to prepare myself for the conversation (without success, it seems

) sparked something inside me. I had a very frank conversation with her and she's
never tried to tell me what to do since.
The point I'm trying to make is that a very direct conversation could change your relationship with her forever. I think your wife needs to be the one to do it, though. If she takes you up opn your offer to take the blame, that will work for now, but it won't change the balance of your relationship. I didn't get mad with my Mum (in the way I might have done in my younger days). I just told her straight that I was 38 years old, that I had earned my own money since I was 18, ran a home, had a husband who also earned money and had a say in things (don't let him know I said that

) and that I was just telling her about our holdiay plans, not asking for her permission. It was such a huge weight off my shoulders - I wish I'd done it years earlier. The advantage I had is that it wasn't planned. I hadn't rehearsed a speech in my head. Having said that, there are strategies that I think could work for you. Calm, but determined. Broken record technique. State your case and don't feel the need to justify yourselves. Let her do the talking.