Enji and Teka are not on good terms. If your son never looked at you during his wedding day, I think it’s a clear sign that he doesn’t want you there. Teka knew it, so she never bothered to be in touch with him for decades. She doesn’t even know her own grandchildren. This is the part where I feel bad for Teka. I know it was her fault for being neglectful and toxic to her son, but at least she knew what she had done. Teka is a perfect example of an imperfect parent; it is rare to explore parents' regrets, especially in the Shonen series, which is why her character is a breath of fresh air.