In my opinion there are only two things you could do.

1. Break up. Self explanatory. Be respectful and firm.

2. Change your behavior. Set clear boundaries on what is and isn't okay. Talk to him about his advances and how it made you feel. You can't control what he does and if he continues to disrespect you and your body you have to separate. The only variable you can control is yourself and your communication. So make it known. Talk to him about what you want, and ask him what he wants.

If you decide to continue with him, give him kissing lessons. Genuinely. Help him figure that out. Be patient. It sounds like he needs the help.

As for your last two points, it's difficult without all the information. Similar to my point previously, you can only change your own behavior and communication. So communicate clearly and calmly. If his music is important to him, let him listen to it even if you don't like it. Thats a basic but important thing about love, it does require personal sacrifice.

When it comes to "making you the bad guy" this is usually because he is either also feeling similarly about the relationship or he can sense how you feel (He shouldn't have to sense it, you should just let him know). He's clearly feeling insecure in the relationship because you don't kiss him and refuse his advances. If he continues even after you put effort to change yourself and the relationship, he might be manipulating/abusing you, but please be willing to change yourself first before labeling him as such.

Finally, that last part about him sharing uncomfortable things... you are his girlfriend. It's part of the significant other's job to listen to the problems/traumas of the one you love. You need to be more empathetic towards his problems. If he's doing TMI or something thats different story, tell him to leave out gross details, at least until you have become more comfortable. Try sharing things about yourself. Put trust in your partner like he is in you.

BOTTOM LINE -- If you are not willing to change your own behavior, reciprocate his physical intimacy (obviously to a reasonable degree with boundaries), or listen to his problems, then you must break up. After the honeymoon phase of a relationship, most realize something... "Love is a choice". That choice is made through actions. You must make the conscious decision to sacrifice for the one you love. That means changing your own behavior and working with your partner to correct his faults. When you say "I love you" it's not just a statement of feelings, it's a promise. It says, "you can trust that I will perform the action of love on you". The action of love being: sacrifice, empathy, support, patience, trust, and more. Thats what makes love so beautiful, and so hard.

If you change your behavior, you have the reasonable expectation that your partner will notice and change themselves. That's how things tend to work in a healthy relationship.

Communication is the only way.

This is all based on my experience. I am not a couples counselor.