I need help understanding this

You don’t give a lot of detail beyond her simple expression of that desire. You don’t say WHAT she said when, as you put it, she “tried talking to me about it”. Does she still want you? Does she merely want the freedom to date other people, with you free to do the same. Does she want a threesome with you and another guy? Does she want you to watch her have sex with another guy. I wonder too if you think she’s satified with the sex the two of you have.

If the idea doesn’t turn you on in any way she might not be the girl for you. But if it does she might be just the one.

Some people just need more than one lover. My wife is one of those. She has a huge number of black males that she fucks. You are jealous, which is the overriding factor for you. Channel your jealousy into feelings of eroticism, and encourage her to fuck others and either let you watch or tell you the details. You won’t regret it. I won’t. After all, the alternative is not attractive.

Kick her to the curb

she like many females is finding life with just one man sexually is unfulfilling. possibly we are not skilled enough ? avoid doing things ? are simply undersized ? or many other reasons.
what is the real pivot point is she has been honest and involved you rather than cheating behind back ( over 60% of married women admit to cheating ) so give credit there.
however not all guys are happy sharing a partner around ro having another man involved especially sexually. divorce is not uncommon where cheating has occurred for example.
if .we do not find her wishes distasteful . abhorrent or emotionally combative . we may…? be able to sit and chat honestly an openly a stop reason she wants other man or men in her life!
if you cannot agree ? then need to walk away as when a female decides she want’s another guy..very rare she fails to get.
no easy and can be painful. many cucks have been literally forced to accept wifes desires . learning over a period of time to ease of emotional angst an pain that can can alone with her happiness and freedoms.
soem men ( beta) are more willing to simply step back an let a macho ( alpha) male step in sexually and even go on dates. dinner etc enjoying still having a female as a full time partner even with restricted sexual sharing etc .
not eays .do read . do chat to others and do above all chat to partner!