Anxiety about romantic relationships may be traced back to your connection to your parents as an infant. An anxious "attachment style" develops when you don't feel you can trust or depend on a parent to provide care and love, according to therapists Carista Luminare and Lion Goodman in the YourTango article, "Is Anxiety Hijacking Your Passion & Romance?" Your anxiety about romance results because you are not certain you will receive the love you need.
Your anxiety about romance may cause you to act in unusual ways, says social worker Nancy Travers, in the 4Therapy.com article, "Relationships and Anxiety." You might feel suspicious of your boyfriend's behavior and call or text him to check on what he is doing. You might become needy or clingy -- constantly asking for reassurance that he loves you and is not going to leave. You might even do impulsive things or make rash decisions, such as breaking into his locker to look for evidence that he is cheating. Your anxiety can turn into obsession and may cause the thing you fear -- your partner to leave.
Learn to manage your anxiety by developing coping skills to slow down your thoughts and control your emotions. For example, Travers recommends practicing deep breathing from the diaphragm when you are feeling anxious. Keep control of anxious thoughts by writing in a journal, practicing mindfulness (being aware of the present moment) or by imagining a positive future, as discussed in the American Psychological Association article, "What Are the Benefits of Mindfulness?" Do something for yourself such as taking a walk or listening to soothing music.
Having a sounding board can help. Be sure to talk to your partner and let him know how you are feeling, writes psychology professor Susan Krauss Whitbourne in the Psychology Today article, "Bad, Mad Love." For example, if a daily phone call from him would help you to feel more secure and less anxious, tell him. If your partner knows your triggers and what can be done to offer reassurance, both of you can feel more secure in the relationship.