I understand that elation and crashing. My guess is some of that is horoonal. I believe orgasm releases oxytocin in females which creates trusting and loving feelings (a good reason why it's mentally unhealthy for women to have emotionless "hook ups").
About the only way to deal with this is expect it and get used to it. Unfortunately, I don't know of any other way.... I just know it's very difficult. Try to use the physical intimacy as a chance to try and get some friendship going as well. Be an amazing listener, ask lots of non-personal questions and let husband talk as much as possible. Don't expect anything and sadly, don't expect this will save your marriage. The only way to really protect yourself is to have no expectations whatsoever. And in the meantime PMA!!!!
I know what I'm telling you to do is not always possible, but just do your best. In some ways this requires a bit of "acting." But also, the more you practice something the more you become it.
By the way, don't just shave your legs make sure you have some AMAZING undergarments too! May as well make the most of this and have fun.
