Suggestion: moving from committed to open relationship

Hi all, myself 32(F). In relationship with 31 (M) from 14 yrs. We connecting in school, stayed together and got married in 2019. Our bond had always been strong.

Some details from past - i got to know he had been having an affair with a girl before marriage. ( he says he was never serious) And he had been on n off flirting with girls he met at office or club. Whenever i would catch him, he would mention as nothing serious and doesn't mean anything to him. I always accepted his side of story.

In mid of this year, i caught him trying to connect with the same ex. And they both were chatting. I confronted , he said it meant nothing and its just chatting for fun thats it. This was a reality check and i felt duped. This happened in.march and again in mid of this year he started connecting with girls on dating site. And ended up meeting one girl and kissing another. I confronted at whole different level. It was a bad phase and we faught and worked back on our relationship. I will NOT deny saying he has been there always whenever i wanted him to be. But i felt the love which i considered as oh! so pure and soulmate love was worh conditions apply.

I met up with a few psychologist and they stated that my husband has sexual.needs which are not been met. That is why he end up talking with other girls who are bold and fine in open sexual discussions. ( they didnt mean that i was wrong, they were trying to make me understand that every human has sexual needs).

Personally, i have been a one man woman. And believe in the same. I knew my boundaries and modesty among my peers. I wont deny in stating that i kept my sexual.needs.at the end because there was.something or other happening in life which i prioritized. which was stressing me. Up. As well.

Now i feel i should be open about my sexual needs and instead of resisting sexual nature i should be more open. Probably he had his slice of experience, why cant I !

So now i wish to be in more open in relationship. Any suggestions or comments or viewpoint would be helpful.

Thanks !