But... join you for WHAT? Join you HOW? Could fill in the missing information for your offer to this 3rd person.
- WHO is going to be in this relationship?
- WHAT are the boundaries in this relationship?
- WHEN does this relationship happen? Daily? Weekly? Monthly?
- WHERE does this relationship happen? LDR? Local? Online only?
- HOW do we agree to treat each other while in this relationship?
- WHY are we coming together to be in this relationship?
There's more to sort out, but could start there. See if clarifying that helps you find what ye seek. Nobody is a mindreader. Very few, if any, people are going to sign up for something when the offer in the table is unclear and when all players don't agree what kind of open model
they are trying to begin and practice with each other.