I have a colleague who is also a friend that I've known 5 years. The other day we had a bit of a spat at work, nothing major, more like a miscommunication really. She ignored me after, I broke the silence by asking if we could talk. I apologised for my part, she didn't.
Since then she's been weird with me. Just off. It's bothering me but I feel like if she's still got things to say to me/still got an issue with me then she needs to initiate speaking to me about it.