1. 主句是 Do you recall the night in Belleville?(recall 在这里是remember 的意思), 后面的 when you made us all spaghetti 是形容 the night.(made us spaghetti 就是 cooked spaghetti for us, spaghetti 是意大利面,长得和拉面差不多,圆柱型的.)
2. for which one is trained 和 which one intends to follow for the whole of one's life 都是形容 the job or profession
for the whole of one's life 也就是for life (终生)
It's a job one gets trained for and
it is a job (career) that one plans to follow for life.
(比方说教师这个职业)