What does my fiance mean when she tells me she doesn't love me enough to get married?

The next time this happens call the engagement off and just be with her as only her boyfriend not fiance and if she still runs away from you without the excuse of marriage trust me the hurt feelings neglect and abandonment is not worth it sounds like she is being a little selfish and only thinking about herself she may be scared of commitment but then gets use to the idea of being with you then finds another reason to be scared and turns you down and leaves let her know you won't wait for her forever and to stop messing with your head have that final talk of either you want to be with me or not we are not getting married we are just in a boyfriend girl relationship and if you Wanna leave their will be no more of you coming back because you can't keep playing games with her its not good for you

marraige is not the same as being together.
the two of you seem compatible, very indeed
i mean, maybe she just doesn't appreciate you for who you really are as a person
if everything you do is good and there is nothing she can pick as a fault in your character
some girls just need to learn how to appreciate their man

albeit there isn't enough detail here, but suffice to say

marriage is a huge deal. financially and emotionally more or less
maybe she's afraid of committment
maybe she just isn't confident and doesn't know much how to react to the situation and is a little shell shocked at the M word itself
it's a huge deal and maybe it's just her way of recoiling into her own personal space
if she isn't the type to wonder to another guy in the past, then it wouldn't be another guy I suppose
but like I said,
some girls if they have it good for so long, then
well
they just don't know how good they have it.
i wish I had a guy to care about me, treat me like with respect, protect me, but yeah
i think if she does come back, forgive her, tell her you love her, just I think if you've been together for so long, it should be a bond that's hard to break and can mend itself.
personally I would love to get married with the right guy, that would make me happy.
she just might be really afraid right now

When did she say she didn't love you enough to marry you because based on what you said she is very confused.

As much as I hate to say this, you have to get away from her and break it off.
Its not like she is saying she is not ready YET, but she is saying she DOES NOT LOVE YOU that much to get married.
If she had doubts she probabily would have kept it to herself, but to get to the extent of telling you means its much more, I hope you understand what I mean.

Its not like they is gonna be a magic bullet that all of a sudden loves you much more to get married.
Hate to say this but you need to break up with her and find someone that does love you.

Because in time you'll realise it.

she sounds very confused. you can't rush mariage. but then agan she is your fiance which means she had to of said yes wen you asked. but still it seems to be a persnoal issue not anything to do wit you. jus sit down and talk with her. never kno you might uncover sumthin you never new b4 or clear up sumthin she feeling.