Samuel Chiltern answered
You haven't said what kind of mental illness your girlfriend suffers from. Do you think it might influence whether she is capable of deciding whether she wants to be with you?
Since you mention her mental health, it is presumably having an effect on your relationship, so this is an issue you will both have to address if you stay together.
I have no idea how severe her condition is, but if it's affecting your relationship, then I imagine it is serious.
If her mental illness is the only reason you're not sure about staying with her, then you need to understand that, with the right support, whatever condition she has can become manageable.
If you love her a lot, then you should stay with her, but only if you are prepared to support her through this.
If you stay together, she will need your help. She will need time to herself, and equally, sometimes she'll just need you to be there for her. You must resist the urge to judge her or blame her for her condition, as this will only end up making things worse.
You should approach the idea of getting professional help - she might find it easier to do this if you offer to have couple's counselling with her.
If she is in any doubt about whether she wants to be with you now, perhaps these doubts will be allayed once you've shown her how much you care about her, and how much you're prepared to do for her.
Hopefully, you will find that by working together to address these issues, you'll develop a close and loving bond.
Since you mention her mental health, it is presumably having an effect on your relationship, so this is an issue you will both have to address if you stay together.
I have no idea how severe her condition is, but if it's affecting your relationship, then I imagine it is serious.
If her mental illness is the only reason you're not sure about staying with her, then you need to understand that, with the right support, whatever condition she has can become manageable.
If you love her a lot, then you should stay with her, but only if you are prepared to support her through this.
If you stay together, she will need your help. She will need time to herself, and equally, sometimes she'll just need you to be there for her. You must resist the urge to judge her or blame her for her condition, as this will only end up making things worse.
You should approach the idea of getting professional help - she might find it easier to do this if you offer to have couple's counselling with her.
If she is in any doubt about whether she wants to be with you now, perhaps these doubts will be allayed once you've shown her how much you care about her, and how much you're prepared to do for her.
Hopefully, you will find that by working together to address these issues, you'll develop a close and loving bond.