Bharti,
Mars-Rahu (2016) and Mars-Jupiter(2017) are not good for marriage as both Rahu and Jupiter are placed in nakshatra of Rahu with combination for divorce and humiliation.
Mars-Sat period from 19/2/2018 will be smoother from marriage pov and I don’t see second marriage as cuspal sublord of 7th house is neither Mer/Jup (even if we change time to +/-10 mins) nor placed in dual sign.
Mars-Sun from 2022 onward shows good-chance of travel and Rahu mahadasha from 2022 is conducive for foreign settlement.