Wa `alaykum As-Salamu waRahmatullahi wa Barakatuh.
A Muslim runs his life through a number of basic principles. They include the fact that whatever happens in this universe goes by the will of Allah alone and His qadar is always the best.
Your concern about something cannot, by itself, guarantee that you will definitely get it.
Moreover, marriage for a Muslim is a protection from evil. In most cases, getting married is a recommended act which is highly rewarded by Allah.
Therefore, my point of view is that you inform this brother if he is interested in you, he should approach your parents and make a proposal for getting married to you.
Otherwise, if you have a suitor who has proper character, faith and qualifications, you must accept him and go ahead in getting married.
Allah knows best.
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