Separate insurance for my wife and I? Idaho

Basically wondering if we can buy separate plans, and if she can utilize subsidies for her portion? My wife has depression and Bipolar disorder which makes it hard to work steadily at times. This also means that she requires medications and several dr. visits every month. She only makes around $9-10k per year, I on the other hand made around $40k last year, but did not use our insurance once. We were paying $290/month for a "silver" level plan after receiving a subsidy and it was ok, but due to getting a couple raises, the same plan will now cost $470/monthly which is absolutely insane to me and I refuse to pay that for insurance that only she uses. Am I going to have to just bend over and pay the equivalent of a new car payment, or can we work it so we buy separate plans this year and then file our taxes "married filing separately"? Thanks in advance!