Need help managing menstrual meanness!

Mi

Idk if this is the right place to post this, if someone thinks of a better place and wants to recommend it to me I'm open.

I need help. I was on the implant for years. I didn't have periods, I didn't have hormonal fluctuation. I'm now completely off BC because it was giving me health problems. So my periods are back.

And I get SO MOODY! Like it gets worse every month and my poor fiance doesn't know how to handle it. I'm mean guys. I don't want to be. I can't help myself in the moment and I immediately regret it. We aren't having terrible fights or anything I'm just really mean and then I go to the bedroom and cry. I'm really afraid he's going to say he's had enough soon and I totally wouldn't blame him. I don't want to feel this way or act this way.

Does anyone else experience this? How do you manage it?