看影片时，有句台词是
I think I only agreed to play spin the bottle because you guys were so
excited about it.
接意思来看的话，only 应该要放在because的前面才对呀，
这句应是I think I agreed to play spin the bottle only because.....
但显然美国人不会这样讲。
有哪位高人可以解释一下only的用法吗？对only的位置一直很困惑

这是副词用法：I only/quite/totally... agreed ...

谢谢