WE ARE JUST FRIENDS
When you are married, you cannot and should not have a best friend of the opposite sex who is not your spouse, period! You would just be setting yourself up for adultery. Most cases of adultery begin with simple friendships...
And even when you are single, having a best friend of the opposite sex is a very slippery slope. unless you intend to pursue a relationship, it is saver to avoid very close friendships with someone of the opposite sex. Most people will argue this: however, the truth remains, that sooner or later, at least one person in this friendship situation will start wanting to be more than “just friends”.
Most times, though not always, it is the women who end up falling in love in this way. Please guard your heart ladies and avoid spending a lot of time and communicating a lot with a guy who is not family. If a guy wants to get to know you in order to potentially pursue a relationship with you, he should communicate that clearly to you from the beginning. You should not be left to wonder and guess his intentions.
Most women put themselves in situations where they have to guess the guys every single action to try and figure out if the guy likes them or not. That is torture that no one should be going through. If you are in such a situation, just discontinue the friendship and stop talking with the guy. You may choose to confront him about it or not. Either way, you should stop communicating with him until he makes his intentions clear to you.
If you still cannot handle the situation you may be in, then talk to your parents or mature Christians about it. I pray that the Lord gives you the discernment, wisdom and courage you need to make good decisions.