Oh that's not the problem at all for me. I am perfectly capable of feeling lonely right through that entire super fun engaging conversation with strangers. Because a conversation doesn't scratch that same itch. Like eating potato chips when what you really need is steak.
At some point I realized that I am not the only +1 at this wedding and somehow those other +1s aren't fucked up in their head about it.
Eventually you realize your agency. Like you can for example spot the other +1 and strike up a conversation.