1 Kings 11:8 He did the same for all his foreign wives, who burned incense and offered sacrifices to their gods.
What do you think is the most likely thing which will take you away from worshipping God? For me it would probably be the same as Solomon, being in a relationship with someone who was not a Christian!
Solomon had many wives and some of those during his later life were women from other places, foreigners, who believed in their own gods.
Falling into line with the one person who seems to mean a lot to you at that time is not so wise when it takes you away from God.
Always try and make sure God is in the relationship with you!