i am looking again for some insights and advice...

so theres a guy whom i met and weve agreed to be in a relationship. he said he would go to my country early next year january or february and will stay like almost 3 months and said that within the stay he will marry me if things go well with us.like legally. so were just new in a relationship not even a week but this guy as days past by, i mean usual days he talks to me like 2x a day in some days once a day and he had an off last friday i was expecting he will be more communicative at least on his off but he talked to me once. or should i say just left me a msg. he talks to me after he wakes up and before he sleeps only. he was a business devt mgr so im trying my best to be understanding coz i know that job is a lot of work than a regular job. he said he was busy cleaning and stuff on his off and bcoz of covid cant hire maid on his off. anyways, since hes not that communicative or available most times i couldnt get much info to get to know him more but he said he was single for 4 years and his last gf betrayed him reason as to why relationship ended. he said he wanted to settle down have a family. we are just new in the relationship, but i wonder, is this guy for real or just playing around? should i be patient and understanding and give him a chance until he gets here or? im feeling frustrated wondering if hes really seriously interested as he claims for even a marriage life with me or is proposal a light thing now

would appreciate any insights and advice. tia and sorry for being a bother here whenever i need answers...