Viv,

You did not say why he was an “ex.”  Good that you know this now versus finding out when you have moved out and married him.

If he says he is not ready then take him at his word.

His actions from having the dating apps and telling you that he does not want a relationship with you should be enough to know that this relationship is over.

I would suggest for you to cut him off, i.e. tell him you are going to block him and ask him not to contact you again.

Mark