It feels like you're not going to be able to do this much longer. No, the relationship isn't going to end. It's just that something has got to give. You've literally said everything you can say to help your partner understand what you need. Explaining, negotiating, yelling, managing. All in hopes that something will click. That something will create change. At this point you don't know how it's gotten so painful and lonely. It's starting to feel a little helpless, maybe even hopeless, that you'll ever be able to have the connection that you once had again.
There have been changes and difficulties along the way. Major ones actually, and finding the path, on your own, from these struggles to why you aren't emotionally close, isn't working. That's where I come in. I can help the two of you find each other again.
Your relationship is the most important thing and you know it's worth fighting for. Let me join the two of you by helping to slow things down so you can understand why you both do what you do, so that you can find the place of security and love that you have been fighting for.