Verb conjugation of "bolster" in English

My brother moved there last year. He met a woman and went after her. After six years they have broken up, but he no longer wanted to return, because he has settled down in his new home. I am visiting him once a year.
Thank you for your answer. Your correction in Russian has helped me. I'm glad to have found a Russian Vocabulix friend with Russian as the mother tongue. I will help you in Spanish, OK?
Your English seems to be good. Can I meet you? I made a German language course, but my vocabulary is very limited. Unfortunately I do not speak German well, but I'll give my best.