Hi, I'm exactly in the same situation, bootstrapped saas (that I care a lot about!) at $15k mrr and getting vc offers. I'm 100% on prioritizing lifestyle and bootstrapping it all the way. Follow your gut, it's what's taken you this far.
I was recently recommended by more advanced bootstrappers to try to form a small closed mastermind (group of people with the same goals/values/stage in business). I suck at socializing but if you think it can help both of us to be in touch feel free to answer :)
Let's keep shipping!