Ok I'm a little confused about the concept of implied odds (what does EV mean?) Does it mean bc you are staying in the hand you are implying you have good odds of beating his hand?

Few more questions:

What if you act first? Flop comes, you check, he bets 50-75%, you call. Turn comes and you miss. Do you bet or check here, because if you check he is going to bet again. What happens if the turn comes and an Ace king or queen hits it also? Time to fold?

Say turn comes you miss, he acts first, and instead of checking he still continues to bet, or even worse goes allin wiht the rest of his stack (around $5-8)?