I hate to say this. Sounds like another woman in the background. Be smart about this. They like to pick a fight to justify their actions.Talk to him and ask what’s going on. Better to know the truth sooner than later. Maybe he is just mad about something. Try and find out.
It could be that an affair is happening...It could be depression...It could be work stress. You won't know until you have a full and frank conversation with him. Is he checking his phone more than usual? Is he coming home later? Any unexplained 'business trips' away? Unexpected phone calls? If so-this may indicate an affair...
Try to stay calm and collected when you talk with him. Point out that you've noticed he's been avoiding you/seems 'off' and you're wanting to know why as your feelings are getting hurt. Watch his body language when he replies-Does he avoid eye-contact/appear dismissive? Or does he offer a plausible explanation, such as he's not been feeling well?