Together (Jegulus)

When James Potter shortly after the birth of his child Harry, his wife Lily Evans passes; this leads to James having to raise Harry on his own until one day while visiting Sirius and Remus, Harry seems to like Regulus because every time Regulus walks past or holds him Harry would laugh and smile which made James laugh and smile this also made James feel something for Regulus. What does this mean? Will this bring Regulus and James together? Will they fall in love? Will they raise Harry together?