I think that since you’ve been together for three years, and you’re both in your mid-30s, and he’s now started seeing someone else, you should focus on the breakup and creating a new life for yourself. Whether or not he starts missing you — he’s left you like this after three years of dating and buying a house together. It’s not a very polite, respectful or thoughtful way of moving on — and I know you’re hurt, but really — you can do better than this. 😉 The way a person breaks up with you is very indicative of their character. Next!