My girlfriends goes on a trip with her ex-husband and I was fine with it.
Dreams about your girlfriend going on a trip with her ex-husband can be interpreted in different ways depending on the context of your dream, your waking life, and your personal feelings towards the situation.
One interpretation of this dream is that you have trust and confidence in your relationship with your girlfriend. Perhaps you feel secure in your romantic connection and are not threatened by her spending time with her ex-husband. You may be acknowledging that your girlfriend has a past and that she is entitled to maintain a cordial relationship with her previous partner.
On the other hand, this dream could indicate a lack of concern or investment in your relationship with your girlfriend. You might be feeling detached or indifferent towards your romantic connection and therefore, are not bothered by her spending time with her ex-husband. You may also have low self-esteem or be afraid of asserting yourself in your relationship.
Overall, this dream suggests that you may need to reflect on your feelings towards your girlfriend and your relationship with her. It may be helpful to explore any potential insecurities or concerns you may have and address them with your partner.