'This Is Us' 100th Episode Marks the End of Kate and Toby, Reveals Her Fate in the Future

etonline.com:

celebrated a milestone -- reaching the 100-episode pinnacle — by marking the official end of Kate and Toby, the beginning of Kate and Phillip (and also answering the mini mystery of where Kate is in the far-off future).While it hasn't been a secret that Kate and Toby's marriage was going to end in divorce, Tuesday's timeline-jumping episode — simply titled «Katoby» — was still a heartbreaking reminder about how painful, awkward and devastating any uncoupling is.

After Toby decided to try and make things work with Kate, giving up the high-paying job in San Francisco, it became increasingly clear that their efforts were not bearing any fruit — marriage counseling included. («I am really so tired of this.

Every day, it's like a different version of same fight,» Kate lamented during one of their therapy sessions.) It all came to a head over a tense marriage-ending fight at dinner when they didn't see eye to eye on how to put their daughter, Hailey, down at bedtime.

What began as an argument about the best way to make sure their young daughter could go to bed without crying soon morphed into a blow-out fight about their vastly different viewpoints on parenting, marriage and, well, life. «I look miserable because  are in the room,» Toby yelled, quieting the room. «All this time… trying to figure out how we ended up where we are now, it's not because I lost a bunch of weight, it's not because it took me too long to bond with Jack or I move to San Francisco or any of the other B.S.