I think your friend is being unreasonable in the circumstances. I think a lot of us are in the same dilemma. I've had a number of different friends jump into trying to arrange meet ups, even 1:1s since the lessening of restrictions last week. For me, it feels far far too early but I went along with one garden get together with some friends and we sat apart and took our own drink. For me as soon as I was there it didn't feel right and I said so. It also clarified for me that lockdown has enabled me to re-assess how I go about things. For so long I've 'nicely' gone along with requests from others to do what they've suggested. All very well but it has stopped me from really enjoying my own time and dedicating hours at a time to doing what I want. Things are changing for me, I will let folk know gently that I don't necessarily see the future for me as it was previously. Happy to have fab friends, happy to meet up only occasionally but that I'm open to zoom type contact too. I must not let my willingness to do as others bid get in the way of my love of gardening for hours, cooking for the family, painting (like a true amateur but I love it), writing, other hobbies, volunteering etc.
I don't think you're in the wrong at all, I think the reason you're unsettled is, in part, due to recent weeks when we've been in lockdown and you've grown accustomed to it and the safety net it has provided. Only meet up when you feel like it. Tell people that it's the 'new you'. If they're happy to have you on your terms, great. All the best x