After 6 months of passion, friendship, and romance is it over???

My boyfriend and I have been together for about 6 months (we didn't know one another before)...Our relationship has been filled with nothing but love, passion and romance (one of the healthiest relationships i've been in). I truly feel as if I could spend the rest of my life with him. I've told him that I love him and he has yet to say it back. But, I feel that he feels the same way and I honestly can say I can see it through his actions.
However, we both work and he is the CEO of his company which adds some pressure to his life at certain times. Lately I feel that our crazy passionate relationship is losing its spark....I understand that this is okay after the fact that we spend every free moment together, but it's scary bc we both really don't know how to respond to it.
He hasn't been able to sleep lately and I think it's due to the stress that he has at work (the sex has died down too).
I really don't want to lose him and I don't really know if he feels the same way, but I am scared that something is missing (he is 31 and I am 29).
Any advice???
Additional Info :
He's a gemini and im an Aries.. we spend every night with one another and it's hard being away from him even to have personal time. We always want to be together and I feel this could be one of our issues. ???? He flew to another state to meet my parents....
Thanks for your thoughts in advance.

Source: http://able2know.org/topic/196551-1

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