Hahahahaha -- ohhh, I have to laugh, because otherwise I'd cry.
Reveille and I have the same cycle. Our bad weeks are the same. How funny. How sad. Not ironic, though, unless you mean "ironic" in the Alanis Morissette song sense, which is to say, not ironic at all, just annoying.
I didn't realize mares' cycles were 28 days, just like women's. Oh dear.
Anyway, she's a serious pain in the ass on the ground, but I thank my lucky stars that she believes (and MT and I reinforce) that once she's under saddle, it's Work Time. I've been doing pretty well lately with demanding her attention and responsiveness, and that seems to work really well for her. MT, of course, is much better at it than I am. ;)
So she's much more energetic and responsive under saddle when she's in heat, or maybe it's just that the camp did a lot for both of us, getting us to gel and bond. Either way, last night's ride was extremely pleasant. She was well forward, listening, and willing to work. It's SO nice. I've learned that if posting her trot is work, then she doesn't have enough energy. Last night, posting was effortless, and she was carrying me. I wish this would last forever!