My Sex Drive is GONE

I started taking 10mg citalopram again last October and since then my sex drive has virtually been non existent - unless I’m on my period. Last time I was on this medication I had no problems, and in the year I wasn’t on anything I was REALLY horny (in a good way!). I’ve probably masturbated like...3 times since October?

I’m only 19, and in a 3 year relationship. My SO is aware of my concerns and doesn’t mind I don’t want to have sex as much. I can get myself in the mood, but he pretty much initiates every time and I feel awful about it!

Has anyone else had this issue? Any advice is welcome!!