don't want to leave for a week

So my grandparents live 14 hours away. Last time I visited them my boyfriend broke up with me on the way over and the trip was shit the whole time. Me and him ended up getting back together. I've avoided going (I hate traveling because I have some mental health issues and it's already difficult and I'm afraid of leaving him) so basically I'm headed there for Christmas. Me and him are LD so we rely on FaceTime for communication. I'll have wifi there but no privacy whatsoever. We've made it work there previously last Christmas. I guess I'm just scared that it'll put a strain on our already complicated relationship.