They are the main LI's
You will maybe get Nyks at some point, thought the dev as well as the MC seems to have completely forgotten about her...
Maybe some of the girls we meet at college, but no idea where the dev even wants to go with the story at this point
¯\_(ツ)_/¯
He felt also loved by Raphael and Emma in the past (and Emma in present if you go for her), as for Inessa i ignored her, so the whole thing is even worse...but you get the same lines either way, that he didn't care she died, what does bother him is that he feels responsible for it, doesn't sound like the love did go very deep for the MC.
As for the ''girl'' he feels the most love and care towards, that would be Luna imo.
But hey, the dev continuously ignores (or maybe forgets) what he wrote in the last ep, so maybe in the next we will find out the MC thought of her as his soulmate and was already hearing the wedding bells...
How would that even make sense at this point...so far we have no one which can revive the dead, not to mention we had to suffer through all the whining only so she can pop up again, yeah.. no thanks.
Personaly i hope Emma will nuke his memory of her and get the story finaly moving forward before this turns completely mental, the current ep was bad enough in that regard...