Yeah. Willow's solution to Oz was to throw herself headfirst into witchcraft, neopaganism and by extension, Tara. So, new hobby, new LTR to go with it. Had she ended up with Riley? First of all, Riley also wants an long term relationship. I mean, that's pretty clear. Second, what we forget about Riley is that he is a G.A. They are going to hang out with other TAs and academics, and Wil throws herself headlong into it. Since a studious Willow who's hanging out with her intellectual peers and working towards graduate school gets her away from magic, I would say she's in a much better place. Dr. Walsh never feels threatened by her, never activates Adam. When Buffy dies in season 5, it's a girl she's moved a away from, everyone accepts her death, the Watchers spring Faith, and the Scoobies move on. Ril and Wil have an interfaith wedding, have a few kids, it's Lilly and Marshall Beta version.