It's doesn't matter if your brother has a partner or not. It's his choice. One of my cousin's never had a relationship until he was in his late 50's when he came out as gay and said he found the love of his life. The whole family always knew he was gay from a teenager so it was no surprise.
My nephew has a few disastrous short relationships with woman but decided not to both he is happier on his own . He's 36.
A friend of my late husband never had a relationship with with a man or woman as he in his words couldn't be bothered. If he wanted sex he paid for it. But he said that got boring after a few years. But he lived a full life had high powered career and travelled the world. He was nearly 90 when he died and never regretted his life style choice. He wasn't a selfish man but just kind ,a true friend and would help anyone who needed it.
Everyone lives the life that makes them happy.
Bereavement wipes out everything
