What do i do about this crap!!! my fiance is completly shut down. sexually. mature answers only ppl.?

ok weve been together for 2 yrs and for the first like 8 months we had mind blowing sex almost every night and sometimes more than 1ce!! but about a yr ago he stopped trying. it started getting dull so i did things to try to spice it up. ive always been more kinky at heart but hes a "love making" kind of guy and that didnt bother me. but i bought toys and took yoga so id be evn more limber and its like in the last 2 months weve done nothing. . . at all. he says he loves me and kisses me everyday but if i try to push for more he totally blows me off. makes excuses. . . wat do i do to fix this? cuz the last time we did anything it was straight forward missionary boring no forplay sex like ppl have with complete strangers and im just weirded out by it.