You are experiencing severe anxiety and insecure in the situation that ur in. Verbalize ur thoughts to ur partner that will ease you out. Or you can write everything that u think n feel and then tear it off you will feel releaved.
Next Steps
You need to understand yourself ur situation and other involved people in that situation. Refrain from jumping im to conclusions. calmly make other person understand what u think n feel without getting angry.
Health Tips
visit a psychiatrist for medication for sleep. and also take proper Counseling for yourself to overcome the situation with winning attitude.