Suddenly all I want is sex and have feelings of wanting to be free and single again. If you have been in a good relationship and suddenly you have an urge to fly free, then I think something has changed. If you are married, then it is natural to have these thoughts. You need commitment, endurance, problem solving, and fun for a long-term relationship. She doesn't want to kiss after.
Many women are uncomfortable receiving oral sex.
It is highly overrated. Many men are enthusiastic about oral sex. I recommend that you have oral sex maybe after the two of you have showered and then maybe take a break after oral sex and go use mouthwash. The vagina is actually cleaner than the mouth. I have a problem making myself like a guy.