Goodness! Didn't see this one <grimace>.
And I'm not meaning to be harsh or disrespectfull, but seems you have a predator Not a Dom you have been speaking with. And I also hate to start up the Real Dom vs wannabe Topic; but I dunno if this one even qualifies as a wannabe?
You shouldn't be in any "trouble" unless possibly you have given this person Personal information about yourself like address, phone numbers, PICs? If so you may need to safeguard by telling someone you Trust ITF about the situation? You mentioned you have roomates, maybe they or at least one of them Needs to Know if you have given out personally identifying information as mentioned above?
IF this were me (which I Know it isn't) I would write and tell this person to go away and not to contact me anymore.
Be Safe NewSlave!
Respectfully~SidheWolf