I think that there are several separate issues.

1) He is angry, harsh, threatening to you in person, AND, he reports being angered by looking at your pictures. That alone, combined with the fact that it is a marriage without children and a new marriage and, per Lynn (I have not read your earlier posts), an impulsive marriage, means that you should get out ASAP. As Lynn has said, cut your losses. Do not go into therapy with him. People go into therapy to salvage something. You have nothing to salvage. So going into therapy would be a waste of money and time. You made a poor choice acting on an impulse, so make a smart choice now by getting out with purpose and forethought.

2) You are wrong saying that he chooses the woman on the screen. He chooses you twice a day, which is not bad. You are not his "second choice". If he supplements it with porn, either seeking variety or for other reasons, that alone should be OK. I agree that being attracted to silicone implants on screen is weird and largely unexplainable, but whatever, since he does get attracted to fake airbrushed images, he does get attracted to fake airbrushed images and he has been attracted to fake airbrushed images for a while not in any connection with you in any way. He does have sex with you twice a day and he is participating in making it exciting and he is commenting positively on the sex life so all of that looks OK. It is a glass half empty half full thing - you want him to have sex with you three times and a day and when he only manages two times a day, it is a glass half empty for you.

3) It is not your duty to please and satisfy him sexually. You should refocus on paying more attention to your own pleasure and satisfaction, and if you do not get those, that would be another reason to leave him. If you do not like feeling like a prostitute, stop thinking like a prostitute: the main difference (besides the monetary exchange part) is in that a prostitute does have a duty to satisfy her client and, normally, does not have her own pleasure in her job description, while a wife does not have a duty to satisfy her husband and, normally, should get at least some pleasure from sex herself.

4) If you do not like the look of your breasts now, you should immediately resume eating. Nothing causes worse damage to the appearance of the breasts than weight fluctuations, nothing, nothing, nothing, so it is prudent to limit the weight fluctuations to the necessary ones (=pregnancy-related). He does like your body enough, as manifested by his having sex with you twice a day. So you should not change your appearance.

5) I think that he had a responsibility to explain part (2) above ON HIS OWN.
If it did not even occur to him to explain to you that he is not choosing the women on screen over you, etc. etc. he is not worth your time because he is a loser, he is being lame and ridiculous and all the rest of that. And, he lacks compassion. None of that looks good in a marriage partner!!!

6) If you fit into children's size clothing and are not eating, you need immediate help. I am not even sure how you manage to have sex twice a day. When I had anorexia, my sex drive went down. I cannot see how it is physiologically possible to be so small, eat so little, and yet be so sexually active. Sex is an optional thing - it is not needed for individual survival, and when we go into the survival mode, as in anorexia, the optional processes usually stop running. Apparently, not in you... At any rate, you need to at least move out. You can still meet him for sex. If you move out, you will be on your own, outside of his abusiveness, and he will be on his own and his porn use won't be hurting you too much. You will have boundaries. You cannot recover from anorexia in his daily presence while cohabiting with him - that part is clear as day. So if you enjoy sex with him, move out and limit interactions to the sexual rendezvous, and if you do not enjoy sex with him, move out and stop the sexual rendezvous. And, initiate the marriage dissolution process - you do not need to be married to someone to have sex with him once a day, twice a day, thrice a day, etc. All of that can be done without being married.

7) The silver lining: it is good that he revealed his harsh, angry, unreasonable and abusive side so early on, before children, enmeshment, financial dependency etc. Better to get out now.