We have been married for 16 yrs, but our sexual life is not very good, sometimes I think that my loves woman (because she does look to another woman passing) although she does sex with me but I don't think she is satisfied. Even me I'm not!
Some times it takes months to have a sexual relation, I wonder how long she survive it, I don't! I finish doing it alone :confused:

It passed from my mind to ask her if she wants another woman may be she feels better!!

What shall I do??

How about talk to your wife?

If you can't talk about sex with her, why the heck are you married to her? I am firmly of the belief that if you can't talk about sex with someone, you don't deserve to have sex with them anyway.

You need to learn to communicate with her. If you don't you will never know what she wants, and what she thinks.

Are the two you in a same sex married?

If so, looking at another woman in passing doesn't mean she wants another woman.

If not, again all because she admires a woman doesn't means she wants them. Sometimes I look at a girl that passes by me for different reasons. I could have like her outfit, hairstyle, tattoo, shape, or looks.

If you feel you doesn't pleased your wife then you should discuss this with her. Maybe it is time to try something new. Experiment with toys, role playing, oils, positions, change the scenery, etc etc.

Talk to your wife about your felings and hear what she have to say. The two of you been married for 16 years so I am sure you figured out communication is the key and maybe the spark is gone but you can work on getting it back.

Btw, have your wife ever cheated on you before because I am trying to find out where are your insecurities coming from?