“只要你不变，我就不会变”英文翻译

I won't change unless you do.

As far as you don't change,I won't change.

Unchanged as long as you, I will not become

直译的不帅气，你应该是要跟另一半说的吧
不如用这个：No betray, no change.

As long as you still be you,I'd still be the same.

美国有个做文具的公司叫 Staples， 就是湖人主场斯坦普斯中心的赞助商，他们每个购物袋上的口号是：

We Are Here Right For You。

中文就是：只要你不变，我们就不会变。更好的翻译是：我们因你而变。

换在你的这个情况就是：

I am Here Right For You。

应该是最地道的说法了。