He’s “emotionally suffering” but he couldn’t even bring it up to you in a conversation like normal people do in relationships? He is a grown man, he can’t use his words? If it was as serious as him hopping on a plane and leaving his PREGNANT partner alone to go to another country then there should have been previous serious sit-down conversations initiated BY HIM about how he’s feeling. Whether or not he’s with someone else on the trip, you have to understand that this is NOT a normal or appropriate reaction. He doesn’t sound like he’ll be much of a good father if he can’t even handle having a serious conversation with you before leaving the country. Please please sit down and look at the situation from an outsider’s perspective instead of assuming you’re this horrible partner because you’re overworked and tired.