Ves quickly calmed down after he heard Tristan describe Patricia's marriage.
Though he felt uncomfortable about her decisions, Patricia was her own woman. It was fully within her right to marry any man she wanted. For her to marry some random Apprentice Mech Designer who graduated from Leemar was her prerogative.
Why should he care so much about the man she chose to spend the rest of her life with? It was none of his business. Ves had his own relationships to deal with. He could hardly spare any attention to Patricia's circumstances, especially since it became even unlikelier they would ever cross paths in the future.
Both sides got something out of each other so Ves could hardly fault the practicality of the pairing.
Still, Ves expected that Patricia would marry someone better.