DEAR ABBY: I have been dating a great guy for a year and a half. He’s funny, smart, and when he comes to my house, he washes my dishes and plays with my son. He is attentive, and he cooks for me. He is always buying me little things like a desk coffee heater because he knows I love hot coffee, or smart bulbs that create cool colors in the living room. He’s a super fun guy, and he often leaves swee…