"Let's go exclusive" what is the meaning to you

I look at it as you will be spending time with each other and agree to only give or receive from each other a days per week where we do stuff, hang out etc...and that we don't want to see other ppl. We are not sharing our relationship/partnership with each other on a deeper level yet...but the potential is there.

This basically has to deal with an earlier post of a FWB relationship I was in many years ago. We were both at different points in our lives back then and we agreed that it would not have worked if we continued then. We started to hang out with each other lately and after a few times together I decided I did not want to continue this way. I found the courage to open up to him and tell him how I felt...and told him listen I'm ready to call it quits...I can't handle doing what we are doing anymore thinking that somewhere down the line I'll just end up getting hurt especially after investing my energy into you. I feel as if you think the grass is greener on the other side. He said that he wasn't looking for anything on the other side and then to my surpirse he suggested to "be exclusive"..I thought he was going to say let's move on...I was not ready for his relpy...We discussed being exclusive...and it means not date other people and to take things slow...he also said that he had feelings for me but they were not as deep as mine and that it takes time for him to develop feelings. He also opened up about some other issues I was unaware of...for example on how different we are...he is a motorcycle rider and snowboarder where I am the chill at home type and I told him I would never expect him to give these things up as I know they are his passion. And that I could learn to snowboard or hand out at the mountain spa lol Another thing that bugged him is that we work in the same building and he did not want to discuss work and the people at work while at home...

Hi, I am from Mexico, I was raised by both parents, very traditional and old fashion.
I was a virgin when I was 23, got married at 24.
Today, I am 35 years old. I am divorce with 2 children. 2 weeks ago I subscribed at a dating site. I met somebody. He is my first date after 2 years and 1/2 of being separated from my ex-husband. The first date we had such great time that end up having sex in his car.
I totally couldn't believe it but I did.
It has been two weeks after that day, we haven't seen each other because either I am busy or he is. (He has 1 son). He never has been married. He just broke up from another relationship a month ago after being together with this person for 6 months. We have been calling each other and texting every day. Our conversations are long approximately 20 min.
Two days ago he told me he had met other 2 chicks not on-line but work place.
I am devastated. He explained to me that I am amazing and all that stuff.. but he is not sure to be in a relationship. He doesn't know what he wants. He wants to see other people. He tells me to do the same.
I told him I don't expect to get married since I already did and I don't date other people while I am already with him. He keeps saying that he doesn't want to be serious.
My question:
What's the real meaning of a relationship? I have always believed that dating or being in a relationship is it to be with only one person and nobody else. I mean isn't that normal? Especially when there are so many diseases. I am not expecting to be move-in together or getting married but to be "exclusive".
I am so hurt and confused. He is going to call me next week. I feel that I am begging or waiting for a rose like the bachelor.
In Mexico I dated guys without sex but at that time it was normal at least the way I grew up but even if I had sex lets say.. there is no way a person dates other people at the same time because you are a slut or the guy is a completely jerk. Am I being too old fashion and that's the way it is in Canada?
If you please answer my question I will really appreciate it.
Thank you. l.