It was lovely to read about the positives in your relationship with Gia.
I can also understand why you're struggling at times. It's impossible to see what the future holds and if the situation has continued quite a while already and there's no end in sight (at least not in the near future), it might feel hopeless. But then again, it could get better. I guess there's nothing else to do than assess if the relationship is worth it now, in this moment and this situation. We only have this one life, so as long as you feel your relationship makes you more happy than sad/frustrated, I'd say there's hope.
Me: bi female in my 30's
Living with Hank (partner) and Will (friend)
Metamour: Dahlia (Hank's partner)
Recent ex: rory (living with Dahlia)