How to handle a narcissist ?

Well the other day my narcissist boyfriend was supposed to give me $700 for rent but because of his account he could only give me five and two the next day…

Long story short we got into an argument and he ended up leaving but the money that I already originally had in my drawer was missing which was $400… (this is aside the $500 guys)

So he ended up coming back with the 400 that was missing from my drawer plus the 200 he said he couldn’t get out till the next day it just didn’t make any sense Where he got all this money…

He ended up telling me that he borrowed 400 from his aunt to make me happy because I lost my money but what person and their right mind would pull out $400 that someone’s girlfriend lost? That’s not their problem

He swears up and down he didn’t take it but I haven’t found my money in days and if you ladies are anything like me with saving money you know where you put it.

I want to let it go & forget about it considering he paid me back, but it’s the lien for me compulsively…

He won’t tell me that he took it and then replaced simultaneously because I know that it’s embarrassing but my money has never been touched until he came in my house.

It’s him trying to make me look crazy and I’ve been looking through my room and drawers for a whole week and nothing, it’s making me sick.

Thoughts ? Please positive comments only