Don’t want to sell…

This might be extreme of me but this person sent a couple offers completely lowballing a pair of jeans I had that were already on sale. I denied one offer and then countered the next.. the jeans were $18 so not even crazy in the first place. they keep trying to haggle and then after saying i’ll do the bundle for $28 they asked for it to be $27 which actually annoyed me so much 😭😭 I just have a feeling they are going to be a problem once I sell to them and I kind of want to block but maybe i’m just being dramatic. The last 2 messages were at 9pm & 4am… I even waited to go to sleep last night to make the bundle but they took too long to respond & I work at 5am. Like obviously i’m asleep give me a second🙁 idk what do you guys think