Masculinity is commonly used in a wrong way to describe aspects, that are presented to us by media. According to advertisiments and media you as men has to be an unemotional idiot, ignoring your own logical feelings, so you can always be tough. Additional it is expected from you to return your brain into earlier times and to compete yourself with other male homo sapiens, to draw up a ranking system, showing your social worth in a group, which was pretty important in the time we were living in ape colonies. Because being able to compete with other males, showed that you could defend your group and your mate well, when other apes attacked, so it was an advantage to inherit your DNA. You also could simply beat another ape down, if he wanted to have sex with a female, and you didnt agree. You also could compete against your own group when wrestling with them for the better food parts and so on. Nowadays we invented a system that allows chimps to misuse money as replacement for physical appearance, social groups have agreed with each other that to battle in this new chimp ranking system, you are expected to show your moneyrank by buying useless stuff like a car that cant fly, but costs 10 times the price of a normal car or cloths in the same way and so on.
To acchieve so called "masculinity" you can decide if you want to match in the origin chimp ranking system, by working on your body to acchieve muscles. Or/and the new system, by earning money and buying nonsense stuff with it.
Or you try to find a girl that isnt into that stuff, but this will only be working if you yourself are able to loosen your mind in the opposite from the nowadays meaning of "femininity", because it will be rather hard to find a woman that sees old origin behavement important for herself, but not important for her partner. So normally, the more "femininer" a woman is in the way it is presented by media, the more she expect a man to do the same, when it comes to "masculinity".
There is much sarcasm, but in the core I mean it that way. ^^