Julia Fox is “proud” that she left her relationship with Kanye West. The ‘Uncut Gems’ star “tapped out” of her fling with the 45-year-old rapper when she saw the “unresolved issues” he was having during his split from his wife Kim Kardashian, the mother of his four children; North, nine, Saint, six, Chicago, four and Psalm, three. The 32-year-old actress told the Evening Standard magazine: “It was just like, he still wants to hang out with me today, let’s do it. And then real life set in and the lifestyle wasn’t sustainable. I couldn’t fly away once a week. And I tapped out at the first sign o…