Yes, it sounds like he is inexperienced. Also, it sounds like he's a type of guy that women don't want to have around. He's not just inexperienced with sex, he's inexperienced with relationships, and he's likely to stay that way. He can't rack up much experience because women quickly find him creepy and they avoid him.

This guy is extremely immature, and he's going to lag behind in that department for the rest of his life. He sounds rather lonely and desperate.