First off, kudos on being lucid enough to ask for your spirit guide.
Second, he was indeed a guide. He may not have been a dominant guide. Remember you have scores of guides but you have dominant ones as well.
Thirdly, don't scoff at first contact or you'll block further communication. He came through with a message, you received it, it made sense to you, follow it and see what happens. Guides are not angelic omniscient beings who go around giving profound wisdom and advice all the time. Continue working on your connection and you'll get the "better" stuff in time.