Gulp, that's got potential for disaster!
Got a bit 'distracted' from my DH once, only in my head, but that's where it starts.
Made myself do a daily list of his good points, actively banned myself from thinking about anyone else and also made myself be extra loving to my DH.
It worked - I was once told that love is a verb not a noun - ie it starts with what you do, not what you feel, the feelings follow.
Well they did with me anyway and I'm very happy with my darling DH. Sure there are better looking and more 'charming' men out there - but he's got qualities they'll never have.

Hope you find a happy way through - take care, Jay