Im in my late 30s and he's in his mid 40s, weve been together for 2 years. We had a great relationship, did so much together and with our kids (not together ). We were building something great. And with one fight over moving in together he decides we're not meant to be. And the day he broke it off, he was telling me he loved me, how he was excited about the future together. we had plans for the holidays etc. and now 3 weeks have passed and i haven't heard from him. Im beyond devastated. Why do guys do this?