By man-up, too, I mean, read what Nick said on the thread, that he wants to suicide and stuff? They haven't even kissed yet!
So now, what if you two really do get into a real argument in real life and she decides to "take a break" or absolutely break up? You'd actually consider suicide if you cannot bear the pain of an online separation.
That will be your biggest downfall in the relationship, never show weakness to your partner.
You're a man, show emotion but be strong about it. In real life, I'm romantic, calm, nice, less belligerent for sure but at the same time, when it comes time to it, I put my physical, mental and emotional strengths at work. Be humble and gentle, but don't let yourself be conquered.