Is this the end of our relationship?

The moment you realize your relationship might be coming to an end. My bf barely talks to me(we live together) our conversations are literally me asking a million questions to get two words out of him. Literally seems the most disinterested in me unless he wants sex and even then he’s barely been nice. He doesn’t even get excited to come home from work to see me. And I said it once because he always comments how I never smile/I’m never happy(which how am I supposed to act happy when he barely gives me attention) And I said maybe if you actually acted happy to see me when you come home, You’re more excited to see the dog. then he told me well you don’t greet me like the dog does. I told him I’ll pee on you everyday you come home if that’s what you’re wanting, knowing that he was giving me a b.s excuse. Now Valentine’s days tomorrow and I doubt he even got me anything. He hasn’t even asked what I wanted to do or if I wanted to do anything for it. He knows he isn’t being nice because he’s said before he’s trying to be nicer to me. I’m waiting for tomorrow when he asks for sex to tell him no not until he starts being nicer to me. Before y’all say just talk to him. He barely talks to me so that’s the problem. What are your thoughts? Am I overthinking?