Do not beat yourself up too hard for such emotions welling up inside you. I know they might make you feel like a weaker man, but it's all part of the process!
It's all about how you actually deal with those emotions! Do not let them get in the way of incredibly important professional work. Push them down if needed for that specific purpose. There are many things that matter much more than petty unneeded romantic emotions, you see!
...But. Do not deny yourself of your own true feelings too hard. This is because doing so will only turn more self destructive!!! Very important advice!!!!!