We’re out of ideas and reasons why it’s so hard. We have tried: texting to see their availability for a spontaneous meeting, texting to plan ahead, organizing small meetings via email, expressing how much we appreciate their friendship, to make it clear that their son is welcome here anytime, and to send our son there to ask to go out in person. We often get silence from them. They rarely initiate a play date with us (but not ever), although I hear of their son seeing other friends, so we know it’s possible. They will sometimes attend larger multi-family children’s group events, but sometimes not. They often don’t respond to those bigger events either, so we assumed it wasn’t about us, they’re just busy, stressed, etc. They just said yes to a group text about going out, then quickly ignored my individual text that came right after, about getting our two kids together.