"I don't have much to offer Sven."
You can't be the primary partner he wants to find, but that doesn't mean that a loving, sexual friendship isn't an amazing, enriching thing. That's a LOT to offer! *You*, if you're offering an authentic piece of yourself and a portion of your limited time and energy, are a lot to offer.
Me, 30ish bi female, been doing solo poly for roughly 5 years. Gia, Clay, and Pike, my partners. Davis, ex/friend/"it's complicated." Eric, Gia's husband. Bee, Gia and Eric's toddler.