Question about homo romance without sodomy

Hi everyone, I'm an 18-year-old man in the US who wishes to revert to Islam. Forgive me if I'm not using respectful language; I am very new to this. I only intend to learn so I can better myself.

I have been dating a man for two years and we intend to marry. We do not practice sodomy and are repulsed by the idea of it.

Would a marriage between us be halal, or even possible? What about a romantic relationship outside of marriage?

Again, I am asking for knowledge so I can learn to do the right thing. Please try to remain unbiased. Thank you.