What is my husband trying to tell me?!

Hi, I'm new here and in desperate help! Have no one to talk to!! I'm a 34 y/o f, been married to my 34- y/o husband for almost 4 years, dated for 3 and engaged for 1. Our relationship hasn't always been perfect since the beginning, but I always thought it was normal for couples to have differences. We were very in love and couldn't get our hands off of each other. After we got married, we started to try to conceive right away and that's when things started to go wrong. We weren't successful after months of trying, and in the meantime we also went through the stress of buying a house to prepare for this family to start. After 3 years of trying, we have a huge house but still no baby. Hubby started to have erection issues, hence we are not having enough sex, sometimes we'd let months go by. He kept blaming himself, long story short my MD recommended us to try IVF, and my husband was very supportive and said he's ready when I am. Until last week.... he told me he started seeing a therapist because of his issues, I told him if he thinks it helps him I am supportive. But yesterday he told me he realized he doesn't have "issues", he realized he's just unhappy and he's not attracted to me anymore....then the conversations led to how he thinks he's not meant for marriage and he doesn't want to drag me further. He says he doesn't want a divorce and he wants to keep going to therapy, but in the meantime he wants us to "separate" so he can think. I asked him what I've done wrong he says nothing, he just wants to do whatever he wants to without having to think about me. He then days he doesn't enjoy doing anything with me anymore, he just wants to go to work, comes home watches sports and sleeps. He says he can't give me happiness anymore. I'm so confused??!!! Is he going to leave me.???

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