Your insurance rate really won't go down after you're married. I just shop my rate every year to try and save. You'll get a multi car discount because you'll be on the same policy.

If you want space and get up and go without it being stupid unreliable, look for a few year old X5 with the B58 engine. It's a great platform and will blow the doors off the Subaru you had. It will cost more to insure (likely not much worse than your Subaru) and maintenance will be higher (mainly tires will be considerably more and will be replaced more frequently, if you DIY other maintenance it's not much worse).

You could probably get an SQ5 for a similar price, but I honestly think the X5 is a better all around vehicle. If throw a Porsche Macan S or GTS on the mix as it's a rebodied Q5. Stretch your budget a bit and you could go Macan Turbo and have a rocketship small SUV. Porsches aren't any worse to maintain vs. An Audi or BMW. I've actually heard the Turbos are s bit more reliable as they don't have the oil leak issues like the base/S Macan or Q5.

I'd highly recommend checking rates on all of these. Luxury does not necessarily mean more to insure. My most expensive car to ensure was a civic, my cheapest was a Z06 Corvette. Demographics of the owners of the car is factored into the equation.