I'm glad for you.

我为你高兴。

youdao

I'm glad you split up. She wasn't right for you.

我很高兴你们分手了。她不适合你。

《牛津词典》

For standard colleague avoidance, I suggest fake chatting about fake business: "Yes, I'm glad you called, because we really need to hammer out the details."

对于典型的同事回避，我建议假装聊一些假生意：“是的，很高兴你打电话来，因为我们真的需要敲定细节。”

youdao

But she loves American standards, from show tunes and loves songs, as she told people at the release party for her new CD, called I'm Glad There is You.

VOA: standard.2009.11.03

I'm glad you all are the ones that are leading the effort for us.

WHITEHOUSE: President Obama Calls for New Steps to Prepare Children for College and Careers | The White House