The text "いくつ もの 愛 を かさねて" can be translated as "Piling up many (countless) loves" or "Accumulating many affections."
- いくつ: how many, several, or countless
- もの: a counter or emphasizing word meaning "many" or "a lot"
- 愛 (あい): love
- を: particle marking the object
- かさねて (重ねて): te-form of 重ねる meaning "to pile up," "to accumulate," or "to repeat"
So, it expresses the idea of repeatedly or continuously accumulating feelings of love.