I dreamed I was in my bed now in my room now with the dream…

Thank you for sharing. I am happy to help you understand this dream. Remember, the key is in the details!! Thank you for waiting. Dreaming of your room and your bed speaks to a personal issue. Your ex being present may indicate the issue was either in the past, or was regarding your close relationships (not necessarily with your ex). He initially pulls the covers, exposing a roach. Roaches are a dirty pest, that can potentially become an infestation. This points to whatever the issue is as being potentially impactful to the rest of your life (or at least impactful to your other relationships). It appears you both lay back down, but you notice two snakes, that were growing! So snakes are an interesting dream symbol, and their meanings can be quite broad. Let's narrow it by looking at color first, then anything that stands out. One snake was black, the other was red, black and white striped. Again, those colors are pretty broad in meanings, so let's look at surrounding details. The striped on ate an animal. Watching this can feel a little threatening, and your ex wouldn't wake up to help. This may be an event that took place in the past in which you felt helpless, threatened, and your ex was not supportive or helpful. In light of this, the snakes would speak to some threat, although not life threatening (since those colors are not indicative of a poisonous snake) but impactful enough to you that you felt the need for support or help.
Tell me about the boy - did anything stand out about him? His age speaks to transition and maturity. Could this dream be hinting at an old event from your younger years? Your text reads a little unclear so I'll ask, are you saying he stared at the snake? That speaks to confrontation, in which your response in the dream screams fear, and worry.
Is there something in your life, from your past, that may be creeping back up?