Love, that word

I gave the 1st 3 episodes an 8/9 for good action, good sex and good story and decent acting - but episode 4 is starting to get bogged down with flashbacks and melodramatic scenes that take away from the mystery and story - I am not comfortable where this is going and only give it a 50/50 chance of staying with me for the complete season 1 let alone season 2 - I hope I am wrong . The romance , infidelity and what may turn out to be more than a romantic triangle has promise but not it they continue with the annoying flashbacks and son in law melodramtics. The lead doesn't like she is in her 40's with a 20 year old or more daughter - other than that the casting is good.