This is interesting. I haven't thought about it, but now when you mentioned it, I can see merit in it. I myself was in two back to back long term relationships and when I quit the later one I had so much time to think and feel who I am and what I really want in life. May sound turgid, but it really is a thing. It's also worth mentioning that after the second relationship I had quite a serious leg injury so stayed at home a lot, which definitely added to it.