I’m in a similar situation to you!
I’ve had my Patriot a year and a half, I bought it off of someone here, who had bought it off of someone else here, who’d had it from new, and I completely love it. However, since getting it I’m doing a lot more (and more varied) riding than I ever thought I would (for example over the past 3 days I’ve spent 6 hours in the saddle, and the most I’ve had to contend with was a couple of roots- 80% of the riding was on tarmac or graveled paths). I really need something a bit lighter, that’s going to be better on the road and up the hills.
I’ve decided that a second bike would better suit me- I could spend money on the patriot, shaving a few grammes here and there, or I could spend similar money on a second hand bike (I’ve decided on geared and fully rigid). That way I can have something much better suited to the more “xc” riding, and keep the Patriot as it is, for riding into things I shouldn’t, much faster than I should!
My needs are perhaps slightly different to yours, but a hardtail for the “nimble” bits you want to ride could be an option all the same 🙂