NTA - my partner is extremely clinically vulnerable and when Covid started I did my best to protect him by not exposing myself unnecessarily. I don’t regret it at all. After getting vaccinated we decided together how much comfortable he was for us to resume normal activities, and for example we’re still trying to avoid crowded public transport as much as we can. Of course it’s challenging, but this pandemic will not be there forever (hopefully) and the risk it’s just not worth it. I also suffer from depression (this was since pre-pandemic) and it’s been even more challenging because of that, but again, I will never regret putting his health first.