Should I or Shouldn’t I?

Lydia

So my brother has this friend. This friend adds me on Facebook every so often but I never accept because I don’t actually know him. So today he added me again and I was like okay I’ll accept him. Keep in mind he isn’t my type and I’ve never had an interest in him. He has kids which is fine. He just sent me a text saying “Hey what’s up 😊”. I don’t know whether to reply or not?