Husband's not the jealous type but...

Kinda long, ive got adhd , bare w me lol... First, let me give u some examples. When we first met, i had an instagram with like 10k followers and a snapchat with a lot of "friends" idk a lot of ppl randomly added me. It became a problem to me bc i would get a lot of random dick pics , so i delete those accounts bc we were getting serious and talked about marriage very early. He asked why i deleted the apps , weve always often used each others phones and ig he noticed those apps gone, i told him bc i dont want random guys hitting me on my phone no nore. He says something like "yeah ive seen the dicks pics" and laughs. Another example, 2 years in and 1 year married, i start going to car meets by myself bc my husband isnt into cars, he games. I went 3 times a week, Tuesday, Friday, and Sundays. I met a guy named tom (not really his name) me and tom started going to meets together all the time, he met husband briefly, just a hello to each other. (My husband went to some meets w me but hardly ever) well tom and i started drinking at a bar after the car meets, my husband was always like "have fun, don't get to drunk" and will game while tom and i went. Tom came over b4 while my husbandwas gaming and we swam and were wrestling, my husband saw, laughed how i kicked his ass, we moved stated 3 years ago so i have seen tom since but we do text sometimes. My husbands friend has been living with us for 2 years,.. well his other friend gabe, that he hasnt seen in 4 years ( weve been together for 7 years now, theyve known eachother for like 15-20 years) just came to visit, and thats when my husband starts acting weird, i have met gabe more times than i can count and ive met his bros and dad so its nothing new.. gabe and i were talking in the kitchen, my husband comes out and says "what, u tryna fuck my wife what are yall whispering about over here " in a joking tone, gabe and i laugh and i walk away to smoke and idk what they started saying after. My husband loves dresses and skirts so thats all the clothes i have, i wear a skirt one night, cool, we drink, we watch a movie, play monopoly and then head to bed. The next morning, i put back on the same clothes to grab something from the kitchen rq, my husband says something like "ik what youre doing. Wearing that sexy ass skirt" what...., i always wear this , youve never said anything like this b4. Walked out the room and we proceeded on about our day, of course i changed after a shower. We'll now he brings up my dress.. im so confused on why hes acting jealous , making weird jokes or saying weird things but playing it as just a joke, hes never done that b4?? He also took his friend to work? Btw his friend has a gf but shes like in her 60s and hes is 32. My husband is 34 and im 26. Edit: my husband was the one who encouraged me to start going to car meet, and when i met tom, my husband was excited i made a friend and encouraged us to go out for drinks so that i wouldnt bother him when he was gamin, it was never my idea. I have never been attracted to gabe btw, just no, nor have i ever dated a guy that looks remotely like him lol. But yes , i would say im friendly.. To my edit: im sorry, i must be clueless, he was the one who told me to go out and do stuff. I wasnt aware i was "flirting". I just genuinely try to be a nice person. As for the wrestling, i used to be in mma. I was trained in black belt. He didnt believe me that i.could whoop his ass being under 5ft