There are like a million triangle storylines this company could have stolen from to make this Rusev/Lana/Lashley bullshyt not suck so much:
Tully Blanchard/Baby Doll/Dusty Rhodes
John Tatum/Missy Hyatt/Eddie Gilbert
Kevin Sullivan/Woman/[NAME REDACTED]
Matt Hardy/Lita/Edge
Goldust/Terri/Val Venis
Raven/Beulah/Tommy Dreamer
Any triangle feud where Scott Steiner was going after another wrestler's lady.
I would have even taken a Savage/Liz/Bollea thing where Rusev and Lashley are teaming, and Rusev gets concerned about how Lashley is taking liberties with Lana and Rusev seems like he's being ridiculous and overblowing it, just to find them snuggled up while he's getting beaten down or something.
This whole thing just seemed so... out there and presented at face value that it all just came off trash. Especially right after the Maria thing.
Thinking of it, they should have Maria hope on TV, say Lashley's the real father of her child, and tell Lana he went ghost on her when she said she was pregnant, and he'll do it to her. Can burn the whole angle down now that it's gotten long in the tooth by giving Lana some gun-shyness after finding out Lashley is a serial philanderer who fukks married bytches and drops them.
Give Lana time off, let Rusev ride the wave a bit, then have her pop back up begging his forgiveness. Let him go 'you gotta win matches for me to take you back', and now you can utilize the women outside of the title picture on TV in service of this ho-ass angle, and you can see if Lana is ever gonna be a functional wrestler by throwing her at house shows and all that.