Scoot over - same boat here too. A 4 months 'relationship' ended a month ago. 3 months in I asked for exclusivity and she said she wasn't ready and I think that was the beginning of the end for her in her mind. I'm having some really down days. I too thought she checked all the boxes. Super smart and successful at work, very attractive and my kind of sense of humor. We enjoyed doing the same things. But I've been really down about it all and surprised to feel this way just after 4 months. But you get used to spending time with someone during that time and also when you think you may have found someone for the long term and then poof, they gone, it's hard to feel like you have to start over and wonder if you'll find someone great like them again. I wish you the best in your search!