No hard feelings.

你别难过啦。

I have a hard time with my boyfriend.

我和我男朋友关系那是相当不好。

Why do you have such a hard time admitting it?

让你承认个错误有那么难嘛？

You will have a hard time getting a ticket of Bigbang.

你会发现买bigbang演唱会的票是如此难。

You are getting on my nerves.

你惹毛我了！

You are jumping on my back.

你惹毛我了！

Cut me some slack.

Get off my back.

放我一马吧。