To see glue in your dream indicates a fear of being trapped in some situation and not being able to get out of it. You have a fear of partnership or commitment and a general distrust of people around you. On the flip side, you may be too clingy. Alternatively, you are holding on to some false hope.
To dream that you are gluing something together suggests that you are piecing together aspects of yourself and acknowledging those previously rejected parts. Alternatively, the dream may be a metaphor for a sticky situation.