You're not an idiot. You just want reassurance so much from him that you're willing to let him have his cake and eat it too. He doesn't have to decide between you as long as you're both taking care of him and making love to him. He won't make a choice until he has to. I've been there, in slightly different ways, but I know how it feels. It's agonizing.
Why did you seek his approval about the text you were sending her? I mean--do you know why you told him before sending it? I could speculate and all, but it just seems you wanted him to know you were sending it more than you wanted her to know about ML with your husband. If that's so, do you know why?
M60 H52 D20 M14 yrs OW-old gf from 1986 bomb-5/18/08 H filed for D-9/10/08 D final 4/24/09 xH remarried (not OW) 2012