When doing Naam Abhyaas, any thought other than Naam is a thought of Maya and such thought should be forcefully pushed out. When we have the weapon of Naam with us, then we need to be strong and authoritative, when dealing with such Maya-vadi thoughts. As soon as a Gursikh strongly and forcefully challenges these Maya filled thoughts, they vanish as night vanishes with sunrise.
Don't sit helplessly and let this thought of infatuation or whatever it is, ruin your precious Naam-Abhyaas or Kirtan time. Make a strong and earnest effort to listen to Naam. When the Dhuni (sound) of Naam thunders inside the Mind, false and Maya-vadi thoughts run away as herds of deers run away when lion roars in jungle.
Don't fall prey to Maya. Naam is much more precious than all the substance of the world combined. Remember the supreme sacrifices of beloved Sahibzade, 40 Mukte, Bhai Mani Singh, Baba Deep Singh, Bhai Sahib Randhir Singh in jail etc. These thoughts, whether they are of worldly Ashiqee or infatuation, will run away before you know. Do Sangat of Gursikhs, read books of Gursikhs and above all do an Ardaas for strength. Guru Sahib kirpa karan ge.