<human>: So as the title says, I've been dating my boyfriend for almost half a year. Everything has been great pretty much, but I have one concern. For the first 3 months there was a lot of excitement and passion as most new relationships have. But as of more recently, it seems like the passion will intermittently die off. My concern is how to deal with the mood changes that seem like declining interest in me. I'm unsure if it's normal and I'm now witnessing the effect of the sizzled out honeymoon effect, or if there is something to be legitimately concerned about. I'm even more concerned with how to react during these times. 

For example, he usually holds my hand or makes very endearing physical touches that make my heart melt. But then there will be spans of about 4 days where he won't and his head seems elsewhere. He will also limit his comfort level at my place, no making out or anything and take off early. My initial reaction is to get really cold, but I'm not sure if that is aiding into a self fulfilling prophecy of things going bad. Should I just shrug it off as a temporary mood that has become more frequent? Should I keep my cold shoulder to maintain a balance of affection during these times? Should I try talking to him about it? I'm usually a super talker and like to make everything transparent, but I've come to realize that that isn't always the best case scenario as paranoia can manifest itself in self fulfilling prophecy.  Is it too early to ask if everything is okay regarding this relationship?

Could you distill the essence of the text into 1-3 sentences?
<bot>: I'm trying to figure out if I should play cold shoulder when my boyfriend seems distant to me or if I should act like nothing is wrong...