Husband wants me to be fat?

My husband and I have been together for 4 years now. I used to always struggle with my weight and I was pretty insecure about it. I was 5 ft and weighed 145. Well I ended up getting pregnant and had my son in July. But my weight ended getting to 195. And throughout this whole time, he never commented as much when I said I was upset that I gained so much weight. He usually just said "your not fat." And that was it. I'm down to only 160 which still isn't where I want to be but it'll have to do for now. Well earlier I was on my husbands phone (no we don't keep any secrets or aren't scared to go through each other's phones) well I noticed he had Tumblr so I decided to go on it and I clicked on his likes/following and noticed that he follows/likes a lot of things to do with bigger girls. And in no way am I saying that I'm perfect or that bigger girls are disgusting. I just don't want anyone coming at me thinking that I'm saying bigger girls are a no no. But it's just that I, myself struggle with my own weight. But I mentioned it to him and asked if he liked it and he smiled and said "yes." I mean yes I was shocked because he never once mentioned to me that he enjoys bigger girls. In a way I feel disgusted about myself because I never feel like I'm okay enough for him. I know he's into slim, curvy type girls. And now he's also into bigger girls. I'm like in between and just having my son a few months ago doesn't really help. But after I asked him and he said yes, I didn't really know what to say. I mean it kind of explains why he never said anything to me about gaining weight or me eating a lot during my pregnancy. Also the other night, he came up behind me and said "you're so much thicker now." And it didn't bother me as much till now because I knew what he meant. He said he's always been into bigger girls but it doesn't make sense why he wanted to marry me then if I'm not the type of girl he wants to be with and lady down in bed with. I'm just a little lost for words. (*** I'm not trying to talk crap about bigger girls. Im simply just saying how I feel***)