I think you are probably right about the backwards causality with partnerships/stability. It is easy to forget how brutally shitty it can be to be alone, and it’s much easier to self-rationalize that away with some hurtful story about self-improvement.
As for platonic touch, you might get a kick out of the amateur acrobatics scene these days. Especially in the bay area, there is an incredible collection of acrobats that take platonic touch very seriously. http://www.acroyoga.org/ and http://acromaps.com/ are both great places to get started.