Definitely more than 30 times. It went on intensely for a few months, then sporadically for a couple years. And yeah, we all definitely had feelings for each other. We were very close before we even started fucking. We basically co-parented each other's kids. Catching feelings doesn't mean breaking up a relationship.
Le Stag's done a great job conveying that Laura's feelings for MC are different from her feelings for the bulls. Doesn't mean she doesn't care about Nathan as a person. Doesn't even mean she doesn't like him enough to date him if there was no MC. Feelings are a big part of the fun. The close she gets to Nathan, the greater the MC's jealousy and enjoyment, and also, coexisting with the jealousy, the greater his compersion.
This shit is supposed to be intense for the MC. There aren't many bigger taboos to explore. And for it to be really intense, Laura's got to be into the bulls. It can't just be about raw fucking with strangers, that'll get boring and repetitive real quick.