The key is that you don't work in society, so you don't understand the world of these social people.
1, your uncle and you kiss again, in the eyes of your friends, it is too far away from them. You think he is as close as your father, but in the eyes of friends, a person can have many uncles, but only one father. You said you didn't want people to follow the ceremony, but you didn't say your request directly. Most people will think it necessary to follow the ceremony. If your uncle dies, there will be a gift, which will be endless, because you have other uncles, aunts and menstruating uncles, who will lose everything with the gift. Generally speaking, when a relative of a friend's family dies, only parents, wives and other immediate family members will attend the funeral.
2, 27-year-old people are struggling, and all kinds of interpersonal relationships are very distressed. You really think that you are brothers, just ask if you need anything. When my father was seriously ill, my friend called me and asked me if I needed help. That's because she knows that I have no job and am lonely, but I don't bother others. If you are depressed, you should explain the situation directly and invite them to accompany you, especially those friends who call you back. If they don't even give you this comfort, it will be chilling. Judging from what you said, I think your friends will be cold to you when they know: you are not Sister Lin, and they are not Brother Bao. It is not easy for people of this age to listen and have no time to guess your mind. Because most people encounter this kind of wedding and funeral, they consider the accompanying ceremony. They think your uncle's relationship is quite far away, so there is no need to come. Especially the bride, do you care too much about what you have done for others? As far as your uncle is concerned, he knows who your friend is. Isn't that for your own good? Even if you help, it's just a matter of how much it costs to rent a car. For your friend, too, he owes you a favor, not your uncle's, so he can just not pay it back.
You said that they knew your uncle very well. The reason is that you have eaten several times, which makes me think you take it for granted. Now outside, friends of friends, relatives of friends, have had many meals together. It is a nodding acquaintance, far from familiarity. Your sister-in-law is the same. Your father-in-law has been very polite and probably knows that you have a good relationship with your uncle. It is enough for him to come. Why should their whole family come?