I've Got You Under My Skin

The singer describes being deeply attached to someone, even while trying to resist the relationship. At first, the lyrics show a struggle between caution and desire: the singer tells himself the affair will not end well, but cannot stop wanting the person. By the end, the repeated phrases make the feeling seem persistent and difficult to escape.

“Under my skin” is an idiom meaning that someone has affected you deeply and stays in your thoughts. Saying the person is “a part” of the singer’s heart suggests emotional closeness, not literal possession. The warning that “you never can win” sounds like an inner voice reminding the singer that giving in may bring trouble. “Use your mentality” means to think clearly, but thoughts of the beloved interrupt that effort.

The song can be heard as a passionate love confession, but also as a portrait of desire that may be unwise or frustrating. The lyrics mention an “affair” and warnings, yet they do not explain exactly what makes the relationship risky. The repeated “never win” might express defeat, playful emphasis, or a sense that reason cannot overcome attraction.