Cheating Boyfriend who promised me marriage

Hi Ma'am / Sir, I am reaching out to you for legal advice and support regarding serious issues involving my former partner (Sourabh Dhawan). Throughout our relationship, he engaged in multiple deceptive and harmful behaviors. Firstly, he falsely promised marriage within five years, claiming he would discuss it with his father, which turned out to be a manipulation tactic. When I confronted him about maintaining contact with his ex-partner, he reacted erratically by consuming Mortein mosquito liquid as a means of emotional manipulation, despite no actual harm occurring. Furthermore, he regularly communicated with other women on Instagram and on whatsapp in a flirtatious manner (he even confessed to a girl that he likes her), knowing we were in a committed relationship. Additionally, he maintained a separate Instagram account where he followed explicit content and sent selfies of himself to other women. These actions have caused significant emotional distress and concern for my well-being. I urgently seek your guidance on the legal options available to address these matters and protect my rights moving forward. Thank you for your prompt attention to this matter.