Tourist B2 Visa - Worth a 2nd attempt?

[Mike&Haze 0]

My wife has become a USC in 2019 and we have attempted to secure a Tourist Visa for her mother to visit for a week.   Her mother is a senior citizen in her mid 60's.  She is widowed and has a 35 year old son, grandson and wife living in Cebu.  She sold her home after the death of her husband 15 years ago and has a makeshift, side of the road store for income.  She presently has a new boyfriend in Cebu.  On our first attempt at her visa she was turned down because of not being able to convince the official of her intent to return home.    Since her original rejection she has taken trips to South Korea and Singapore with her son's family, staying a week each time.  My question is that since she has gone internationally and returned numerous times, would that be evidence of her intent to return after being on a week long trip to the USA?  Is it worthwhile to attempt another shot since having this new information?