The "I'm not on here much"

What would be the best way to reply to matches that haven't answered for a while, you reopen and they say things such as: Haha sorry I'm just never on here Haha sorry I'm the worst at replying Or just haha sorry. It's not the case where I can move it to text as I haven't bantered as much yet which would be the option if it's later on in the chat. It won't allow me to upload a screenshot atm but if it allows later I will.