Should I stay in my relationship?

So I’ve been dating my boyfriend for 1.5yrs now and it’s been great. We get along for the most part. Our arguments can’t even be called arguments, just bickering. He moved in with me 10 mths into the relationship. We traveled together, we go to functions together. He’s met my family and they like him. I’ve met his family and from what I can tell, they like me. We don’t have sex nearly as much as I’d like, but hey…who does? When we do, it’s good. He makes me smile & laugh. He makes me feel good inside. He makes me feel beautiful. I love him with all of my being, and I get so emotional at the thought of losing him. For a couple months though, I’ve been very unhappy and almost to the point of depression that I’m trying to hide. I just told him how I feel recently and that I’m unhappy. We talked a bit and cried for a few hours together like we both knew what was coming. He slept in bed with me (No sex) for the next 2 or 3 nights, but then started to sleep in the spare bedroom and we just don’t talk AT ALL when i get home from work. I think it’s over and it’s killing me. I miss him sooo much. I miss getting held at night. I miss having that shoulder for support should I need it. I just miss us. What do I do? Do I stay in it because it’s going to hurt too much to let him go? Do I go with my feelings and allow it to disolve? We have a 9 year age gap, and sometimes I feel like I’m missing out on life that he’s already had the chance to live. I get overwhelmed when I think about what I’m risking inorder to live my life for me, which is where I think I need to be for now. What do I do? I have deep feelings of guilt for letting him know how I feel. It has only turned worse since I’ve told him. I am hurting for hurting him. I swear I broke my own heart by telling him what I feel because it’s just leading to the break-up. I’m hurt. He’s hurt. I don’t want to blame anyone for this, but I feel like it is my fault that this is ending. Afterall…they are my feelings and not his. Please help me.