So, here's the deal: I'm sick of my woman.
We've been dating for three years, nonstop. We go to college together and tend to always take classes with her. She's alright-looking, and she plays games and cosplays and such rather continuously and adequately. We tend to agree on many issues of morality, life, and love, though she's a bit interested in children and marriage, which concerns me. Our sex life is, to put it bluntly, great, even though I have long ago lost interest.
Things between us are by no means BAD. But they also aren't perfect. We bicker incessantly due to our shared trait of stubbornness, and she is overly harsh and judgmental of my activities (hardcore gaming, drinking) and she pouts whenever I take alone time or leave her to see my friends. She's also very critical of my father and sister, people who are flawed but not worthy of the heaps of derision poured upon them.
We also have many portions of our lives intertwined, e.g., we both share an hourly job and our families are quite fond of each other.
There's also a fly in the ointment. I'm falling for another woman as well. This new girl is three years younger than myself. (I'm 21, if it helps) and we are both very into each other. I've kept a bit of distance between me and this new girl, but I find it harder and harder to avoid. This new woman appears to have the qualities I like that my current girlfriend lacks: intellectual curiosity, passion, and a challenging mindset. She's the excitement and challenge my relationship lacks. Also, my current gf is a 6 and the new one is easily an 8.
TLDR: Excitement and Challenge, or Comfort and Security? Help me Escapists, you're my only hope.