Advice please.

So there's this girl, not from this site who keep pestering me and she's really nice but the point is she's way too clingy and talkative. Just talking to her in 3 minutes is enough to drain my energy which i especially gathered through out the entire quarantine.
I feel bad if I say that I dont want to talk to her but I feel bad too if I block her or ignore her.
What am i supposed to do?.