I'm ok with an MC not getting romantically involved with women or having a harem. It seems she has some baggage and maybe MC does not feel ready to commit or that he can provide that level of support. Also he has some top notch talent, so maybe he should hold out for either a title or marrying into a very rich family.
I doubt MC cares about his talent being high, as he has his old-life mentality of considering his work to be average and possibly achievable by anyone if they learn to do it.
So, when it comes to relationship, he would probably sell his talent for cheap and not consider about anything.
Plus, MC doesn't really need a rich family as a back-up, since he is practically self-sufficient in every way. The only thing he needs is a power backer who would keep him safe.
As for relationship aspects, I think the reason MC doesn't have any interest in it is because he was a office worker in his previous life, and played the vr game as a crafter during his off hours, in which he created various stuff which ended up becoming landmark for confessions and flirting by other vr players, leaving MC dry.
Basically, he was an old man in his 30's who unwantedly played the role of a cupid (and mentally he is the same still).
This probably make him treat anyone younger than him as a kid, leaving low chance of a relationship formations (as most people probably get married by their 20's or earlier in that other world, probably making no one being available in MC's eyes).