hi i have a question about myself. im currently in a healthy and good relationship with a loyal person. but in all past relationships ive had very abusive and unloyal partners. i tend to get all these crazy thoughts when my my partner is out or doing anything besides talking to me . i always think they are cheating on me 24/7. also i tend to one second be happy and the next second start an argument out of anger? it switches so fast and im not sure why? i get angry so easily and i dont think about what i say or do. can someone explain these two things please? am i overreacting?