im not good enough for him?

my SO was divorced twice and i stupidily put myself as his 3rd wife. been married for 4yrs now, hed regret that he didnt do better w 2 of his ex wife. cause they both could help him like drive, but as for me, i cant drive. which makes him regret. and i am a person who doesnt really talk, im more of an introvert. but both of his ex arent, which makes him regret also. he also compares me to women in drama movies and his friends/coworkers, that theyre better than me, he wish im like them. he said to me a lot that marrying me was a mistake. i always cause him stress cause i cant help him w anything, putting all the stress on him. living w me makes him depress. we have 3 babies together, and im the only one taking care of them. im also the only one taking care of the house and lawn. but i guess its not enough for him. he even prefers porn over me. all this yet he doesnt want me to leave. but i feel like hes always pushing me away so that i can leave.