Being mocked for my size by a friend..

Chelsea

I’m 5.8 and a size 16-18 ( I lost a lot of weight after going through severe depression but I’m still not at the size I’m happy with. ) but I LOVE to dress comfy, i buy men’s tshirts in 4xl sizes and sometimes more, ( i can actually fit into a medium quite easily but I look strange ) I simply buy big sizes because I find oversized tshirts to be really cute and comfy, especially to sleep in. My friend, who is 5.2 and petite and very pretty, saw my tshirts size and laughed about it to my crush ( who she also likes ) thankfully my crush didn’t laugh, he just looked kind of uncomfortable. But I was so embarrassed. I feel like I’ve gotten myself into a Fake friendship with this girl, things like this keep happening, I don’t know how to cut it off. We have been friends for years now, maybe it can be fixed? Pls helpppp

Ps I also have another friend who says I have extra padding but we just laugh about it, she understands my humour and would never do it in front of anyone else as she knows how uncomfortable it would make me. I’m not too sensitive but there is a line..