Hi Costabelle Remarais,
Even though it has been five months since the end of his toxic relationship with his ex, he is still dealing with the emotional repercussions of it.
He may have told you that he loves you but his fear of getting into another relationship would indicate that he is still skeptical about allowing himself to fully open up and trust a romantic partner again.
Try not to push for a relationship at this time. He may need more time to come to the understanding that he can trust you.