I hope God blesses you with everything you want, one idea though. As a man, who misses every hint, signal, innuendo etc lol-have you considered discussing those possibilities with him? I have a fear of rejection in relationships, maybe he's just waiting for you to say, in so many words, that you're open to marriage?

I had COVID myself and it's tough, but God and faith are stronger! I pray for the speedy recovery of your sister! May God bless her!