Just want to get this off my chest

So I work in a horse racing yard (I have my apprentice licence so that means I can ride horses in races) and at the min in not very happy there... It's a very small work place with only really 3 other people that work there every day. One of the girls there is really getting to me at the min.. She's hating working there and is miserable and it's rubbing off on me! And then she'll make little off hand comments towards me and another girl infront of me and says it like she's sort of joking but not if that makes any sense.. She keeps moaning that she wants to leave but she says she can't find any where else (but if she was that desperate to leave there are plenty of jobs out there that aren't in racing which she doesn't want to be in) so I was thinking of maybe moving to another yard one where it's slightly bigger there's more horses and I'll have more chances to ride in races. The only problem is the nearest one is at least an hour away... And we start early mornings so I'd probs have to live there.. We only get one day off every other week as well.. Last year that wouldn't have bothered me but now I've got a bf.. And I love him with all my heart. We've been going out nearly 9 months now.. And I just don't think either of us would be able to deal with that... Like we see each other nearly every day at the min as where he works is right near mine so he'll usually come by after work... I talked to him last night about it and well we both ended up breaking down as just the thought of it hurt him and then set me off.. I know people do a lot worse long distance than that but we're just so used to seeing each other all the time I don't know how we'd cope. Like we struggled to spend a week apart when I went on holiday last month. I just don't know what to do as I don't know how much longer I'll be able to deal with this girl st work until I snap.. I mean this last week I've wanted to flip at her and that's not really like me... But I don't want to really move.. I'm 17 and can drive so that's not a problem it's just I don't know how either me or my bf would cope.. I duno.. I just needed to get it off my chest.. But like before I got in a relationship I always said I'd never let a guy get in the way of my career but now I can't see how I ever thought that.. Love does strange things to you..