No gym for me

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So my husband told me that I don't participate in things he likes to do. Which I do, if he wants to go to NYC I say okay let's go! Or sit at home and play video games I say okay! But in the beginning I told my husband (bf at the time) I don't like the gym. My dad made me from the age of 10-21 to go to the gym. Then would put his hands down my sports bra and make sure I sweated enough or he would say I still look fat or my thighs weren't skinny enough (I was a size 3/4 with DD boobs) since then I haven't stepped into a gym. (I moved out of my parents home when I turned 21) I hate the idea of the gym because I think of bad things when I go or feel like it's a chore. I want to make my husband happy and go to the gym with him but every time I think of the gym I get anxiety and start stressing out. My dad still to this day tells me his 26 y.o daughter that I'm "bigger" (size 6) and yeah I could use some exercise (we hike alot) but I also eat healthy! What do I do? How do I please my husband?