Being very irrirate from last 2-3 months

I've started being panic at very small things.I get irritated and start shouting.If once my mood gets off,it takes too long to get me back being normal.I have a boyfriend n our families are ready to paired us.I don't know y bt i feel emotionally insecure with him.He is good enough for me but he doesn't show his love n affection towards me.Whenever we've an issue regarding our relationship,he always react rude.He never tries to consoliate me and den the matter,which could be solve by talking lovingly,makes the matter of fighting over small issues.Neither he tries to understand,nor I.This makes me very irritating.Before this relationship,i suffered from break up with two persons.In the 1st case,Our family paired us for the marriage purpose but having some family issues,we couldn't get married.In 2nd case, i got engaged with an other guy but he cheated me.He had many other girlfriends even after being engaged with me. After knowing about him,my family stepped back n broke our engagement.