A sad day

I'm not sure if any of you guys know these two but even if you don't sorry if this post bores you. Yesterday anthony and kalel (WatchUsLiveAndStuff) split up after 4 happy years and 3 and a half years of vlogging their life adventures. If you didn't know them, they were engaged, they owned three cats together, they lived together, and they were in the middle of constructing their dream house from the bottom up. The last video they had posted before that was them visiting the construction site of their house and it was a very exciting moment. Without notice though, the videos stopped coming for more then a month. Everyone was confused and devastated that we didn't know what was happening. After a long period of silence, they released a video yesterday annoucing their split. I was shocked. Everyone was shocked. They were so on top of the world and fit together so well that it seemed alien for them to ever be apart. I've been crying since I found out and I'm trying to get over this. It's crazy to think that one second you can be so happy, but the next so bored with the person you have loved dearly for four years. They say they were moving apart but to me it just doesn't fit. They were inseparable. Anyway, I've become very depressed because of this because I really looked up to them and their relationship inspired me. Now, I'm having trouble believing that there is a such thing as unconditional loving someone for the rest of your life.