You're welcome. Based on my own life experience, I know that sometimes the family dynamics leading up to a wedding can create a stressful situation. This was a very high profile event that due to the behavior of some of the bride's family members likely made it very difficult for those staff members tasked with organizing it and for those who were trying to offer support. I cannot imagine how frustrating it was for the bride and groom that Thomas Sr., Thomas Jr. and Samantha Markle were constantly in the press due to their antics.Thanks TLLK. This is what I was thinking about the situation of reports of a strained relationship. There was a lot going on in all their lives right at that time. I’m sure it was very stressful time for all of them.
And these events and timeframe seem to fit together better than the other reasons and timeframes that have been speculated on to explain the seemingly strained relationship between Harry and William.
When under stress, sometimes things are said that are hurtful to others and that can cause tension in relationships.
When these out of control situation arise, I'm not surprised that tempers flare and hurt feelings are on full display. All the participants are human after all.