I think it's probably because of their goals. They might have thought,"I'll ask her out when this is all done."And maybe because they thought प्यार can be a distraction to their work.Or maybe the boys have so much pride they think they're just gonna end up being dumped.Well, it wouldn't hurt to try right? How about आप guys? What do आप think? Now I wish Arakawa-san is पढ़ना this. She doesn't know how many people would like to see Ed and Winry या Roy and Riza kiss.I wish there was a psychologist in the series,so that way Winry या Riza won't have a hard time thinking,"What do men want from women?" या Roy या Edward would think,"How am I supposed to impress her?"