Venting I guess...

My husband talked to a woman around the same time he met me eventually him and I got more serious so he stopped talking to her. Throughout our relationship he would like her slutty bikini pictures etc and I found that he had face timed her early in our relationship at 2am so I hate her basically I also found messages from her to him on Instagram he either didn't respond or deleted the response ,but ya so I messaged her said stop messaging him blocked her and told my now husband don't talk to her ever again blah blah. It's a known thing that I dislike this girl don't trust them having any contact blah blah. So I never go through my husbands phone ever bc he's always at home and I just never have any suspicious feelings also I'm aware its unhealthy to look through someone's phone in a relationship ofcourse. But yesterday I saw his phone sitting there and idk why I just suddenly felt the urge to go through it so I did. I didn't find anything else suspicious, but I saw that he had liked her pictures and unblocked and followed her and she did the same to him. This made me angry bc it went specifically against my wishes and made me feel disrespected even if that is as far as it went which I hope it is I dont like it and it seems kinda like flirting liking each others stuff and the following each other after I told both of them not to. Anyways so I bring it up to my husband he flips it on me saying I'm crazy to go through his phone it escalates and he ultimately calls me a "bitch", "slut", and "piece of shit" he's trying to gas light me clearly and failing, but I am hurt tremendously by it. I just had a baby I don't look my best ya know and now he's liking half naked pictures of a girl he used to talk to all the sudden and telling me all these negative things about myself. I don't know where to go from here, he later apologized for saying those things saying he was just mad etc. But some words cant be taken back and sorry doesn't cut it. If he didn't feel those things why would they come to his mind to say idk I'm really hurt and idk where to go from here..