Welp, that's a subjective statement, if you ask me. I don't think neither of them would jeopardize their career by admitting they are together or not. All and all, it seems to be a healthy relationship in comparison with his 2016 debacle. THE ONE THAT SHALL NOT BE NAMED lol
They both seem to be nice people, they both seem to have a great humanitarian perspective to their lives (based solely on SM posts, no?) They are both actors who seem to share the same interests.
Maybe they just fell out of love. God forbid celebrities go through the same vicissitudes than regular people! (bet there are still people out there that might think TH's farts smell like lavender...ugh)
Worst case scenario, Zawe would get the short end of the stick when it comes to stan-wrath. Like I've seen in other forums that said that she 'used' TH to land a role in the MCU, which I find derisory. I may not be familiar with her work but she doesn't strike me like a fame hungry type of person and that statement gave me the vibe that came from a teenager that still cannot let go of her crush with a 40 year-old man that doesn't know of her existence