Sooo~ my plot guess only

If u saw the promotional video, there is a baby (and i thought its him but i guess not) and he is married~ i dont think that is his mom cos they r both young & the woman is calling him & close to him, very endearing. Also, considering the fact that it seems Eusan had a past trauma or ptsd (he is taking meds). I think its connected to his past relationship. Like yeah, probably Ian and him are past lovers but then he married and had a child but then accident happened and now its time for their love story to continue he he he.