I'm scared of this relationship

[Pragma]

To keep in short.. me n my DH are continuously fighting from past one year over infidelity and it is on both sides. we tried to start freshly but he continuosly bringing up those topics and always making me feel guilty as it is only my fault. I asked him divorce as I'm not happy in this marriage but he isn't ready, sometimes he will say his life is over and if I leave him, he will commit suicide and always cries and make me upset aswell. I can't talk to anyone or I can't tell anyone what's going on in my life.. he is tracking my calls n my messages from different social platforms and asking me many questions.. I really had enough and want to move on than crying over past and doubting me for each n every thing. However if I bring divorce he will say I can't face society or my parents(as we are Indians), and scaring me by saying that he will commit suicide along with our DS. I'm very scared, don't know what to do, or how to move on..or whom I can contact as I don't want to involve police as he might be angry on me for involving them.. I want to keep DS happy and not be affected by all these.. Am I wrong for asking divorce and to move on with life's rather than staying on this marriage

He is threatening suicide to keep you with him. That's abuse and should not be tolerated.
Threatening to harm DC too? That's a thing for the police. He's a complete and utter manipulative, abusive coward.
Please contact Women's Aid or a similar charity who will help you leave this dreadful marriage safely. You and DC deserve better and there is another, better life after this, I promise

These grotty men always threaten suicide.
They don't mean it, though. They just say it to upset you.

Were you both unfaithful (as you say infidelity on both sides?)

I think if you were then this would be a big red flag for me, I would assume the relationship is unsalvageable and fundamentally flawed.

If you were unfaithful, would he consider marriage counselling?

Ultimately, nobody is unreasonable for asking for a divorce. You are not responsible for his actions, suicide is an independent choice and you cannot be held responsible for his actions.

He’s abusive towards you; and trying to manipulate you. Can you contact womens aid or a more specialist charity for support?