Husband doesn’t initiate sex anymore

We’ve been married 3 years and had a baby last year. He rarely initiates sex with me anymore. If I try he says he’s not in the mood or that he’s tired or that we’ll do it another time. Some excuse or another. If we do have sex (which is once a month now on average) it’ll be over in 10 mins. It lacks passion.

I mentioned this to him today and he just said that he can’t help it if he’s tired. I asked him if it was me...is he not attracted to me anymore? He said no it’s not that. I had tears in my eyes and basically told him he has killed my self confidence. He didn’t seem to care. I then told him to go sleep in the other room.

What is going on? Is he really that “tired”? We both work from home and yes we have a baby but it shouldn’t be exhausting him. I’m so tired of feeling this way.