Help me!

Ok so me and my husband have been together for over 17 years our sex life has been up and down but we have had some amazing sex but now since having our 3rd and final little monkey who has autism we don't get much time for sex it's always boring vanilla sex same position then when I don't cum he can't be bothered to help me finish or does a half arsed job of it just feels like he can't be bothered he has had some problems with ED recently but it seems to of passed now I don't know if he feels a little in secure he knows I like kink and he has done the odd little thing like call me a good girl when I do something he asks and gives a cheeky smirk or when I am in the kitchen cooking he grabs my hair pulls my head back and kisses me and a few other little things like that but like I want more we don't get a lot of time to have sex with 3 children of very different ages and disabilities they all sleep at stupid times and with the summer holidays coming up it will be even worse I am always throwing little hints and even after watching 365 days in bed alone (he knew I was watching it ) I text him and told him to come fuck me like an Italian mafia boss 🤣 he's never ran up the stairs so fast in all his life it's so frustrating I've told him I want it he knows it turns me on how can I get him on bored we have toys wands gspot vibrators jiggle balls nipple clamps a wartonburg wheel and a load of other stuff I have sexy lingerie I've even asked him to pick some sexy lingerie for me to wear when he would like to see me in he says although it looks nice I would just rather have you in nothing instead of messing about taking it all off 🤣 HELP!!!!!