This is not to say that because of your love, you should be condemned. It's normal for a person to like another person who has close contact with him. You can see if he has similar feelings for you. If so, things will be much easier. If he doesn't show any affection for you, you can give up the relationship directly, or you can attract his attention and affection.
1. Check if he likes you
Before you decide whether to give up the relationship or attract his attention in a certain way, you should first check that he enters your body in a certain way at night, or that he has close physical contact with different NSA every day. That is to live. You need to see if he loves you to some extent. Another possibility is that he is also interested in you, but he is not sure what you think. For his guess about you, there are several possibilities. First, he's not sure if you have another sexual partner besides him. Second, he's not sure if he's the type you like. Third, he's not sure if you're just using him to make your boyfriend jealous. These problems may be the reason why they hinder him from going to you. Therefore, you should tell him about you frankly. You have to tell him that you have only one sexual partner. After that, I believe he will take corresponding actions if he likes you.
2. Try to make him miss you
Often on call and too easy to get girls are not cherished by men. If you want to get your partner's attention, try to make yourself look less accessible. When you call you, you don't have to respond immediately. You have to wait a little longer. When he sends you a message, you can wait until the next day to respond to his message. You have to believe in men's possessiveness. Your actions will make him feel that without him, you can have a better choice. When he realizes that his prey may have better goals, they will find ways to protect what belongs to them.
3. Don't always answer his request
If you want to date him, your FWB status puts you at a disadvantage. If you want to change this relationship, you need to change your on call status. You should let him know that it's not a simple thing to get you, it needs his heart and time.