Transitions and transformations

I let go of an 18 year long relationship this morning in favor of a better, more present situation. It's painful, and a relief simultaneously. I know I'm making the right choice, but it doesn't make it any less painful. I feel like I ripped out an 18 year old piece of myself that I am never getting back. My former partners have both moved on without me and I think the partner i broke up with this morning had been waiting for me to let go for a long time. We're still friends, we still love each other, but we are no longer romantically involved. My new boyfriend, Seth, asked me to be monogamous with him. I haven't been in a monogamous relationship in over 18 years and I feel like it's not only time to give it a try again, but that I'm actually with the right person for it. Seth sees me. He sees me in ways no one else has, and that is worth everything. There are some wrinkles to smooth, but when aren't there? My life has been so strange and stressful up until this point, and I think I'm still in for a fair bit of stress before things level out.