deja vu

My boyfriend of 4 years broke up with me just before lockdown because he 'needed to address some issues alone'. 3 days ago, I found out that not only is he already in another relationship, but had started seeing her before he ended our relationship. I had started seeing a new guy for the last 2 weeks, things were looking promising. But today, on my birthday, I receive a message from him saying 'I'm not ready for a relationship' and that he needs time to be alone to work through his issues... Getting a real shitty sense of déjà vu right now.