Rematch

I notice that not many players offer a rematch and I would like to know the chess community's opinion about that.
Sometimes when I lose my partner asks for a rematch thinking that he will gain easy points but after I win he doesn't want to play anymore (sometimes times I lose 4-5 games in raw and when finally I win one my opponent stopped playing), so are players who just hunt points, and I don't talk about this kind of player.
I just want to know the motivation for rejecting a rematch after a pretty equal game.
In my opinion, I'm here to play chess, and if I can play with the same partner for a few rounds, that sounds good. But this work for me and I like to have your opinion on that.

Is ok to accept a rematch or is better to reject it?

There is nothing wrong with accepting a rematch request. Nor is it wrong to ask for a rematch.

What is wrong and appallingly common are threads criticizing the vast majority who refuse all rematches. It is wrong to approach a match with a sense of entitlement that demands a rematch. There are hundreds of threads on this topic.

Your view seems a bit different. I encourage you to seek and accept all the rematch requests that you wish. Please understand, however, that most of the rest of us will neither offer nor accept such requests.

I respect the opponent's decision to accept or not a rematch this is not in debate, I just want to know the reason for that decision.

Is just a small curiosity I have

As I’ve posted in about 200 other threads, I usually play one game then do something else unless I’m in a tournament. In a tournament, rematches are extremely rare except when the tournament is designed to include a pair of games with each opponent.

Could be both ways Hiram. You can be beaten too .
So what you say is not related to the chess game as is related to the person who plays.
This is a good reason. We are not machines and the feeling has a significant role here.
You should try sometime to have several games with the same partner. One advantage is that after a few games the element of surprise is gone and you are forced to find new ways to achieve the victory.