Your dream presents a complex tapestry of emotions and symbols that seem to reflect your current feelings about your relationship and personal anxieties. Here are some potential interpretations:

1. Childhood Bedroom: Being in your childhood home suggests a longing for comfort and safety, especially during a time of turmoil in your relationship. It may indicate a desire to return to simpler times when things felt more stable.
2. The Video Game Killer: This figure may symbolize your fears or perceived threats in your life. The notion of a killer asking for proof through gaming emojis could represent pressures to prove yourself or your worthiness in relationships or social situations. This might echo your feelings about needing to validate your experiences or concerns to your boyfriend, especially given the current issues you're facing.
3. Struggle with Technology: Your difficulties in navigating your phone and apps may reflect feelings of inadequacy or anxiety. It's possible you're feeling overwhelmed in your relationship and are concerned about your ability to communicate effectively or show your true self.
4. Transformation of the Man into Pregnant Female: This transformation might signify changing dynamics in your relationship, or it could represent nurturing aspects that you associate with femininity. This shift may also reflect your subconscious processing of your boyfriend’s role in your life and the potential for new beginnings or growth.
5. The Drug Experience: The initial hippie imagery and the act of doing acid might symbolize a desire for liberation or escape. However, this also contrasts with the fear and anxiety that followed, suggesting a conflict between wanting to be free and the realities that ground you in fear.
6. Fear of the Unknown: The panic about the killer returning and forgetting the suspects' appearance can reflect a fear of the unknown or unpreparedness in your life. It may signify your worries about facing challenges or uncertainties in your relationship or life in general.

Overall, this dream seems to encapsulate your anxieties about your relationship, your self-perception, and your fears about proving yourself. It might be beneficial to reflect on how these themes relate to your current reality and consider open communication with your boyfriend to address any underlying issues.