I'm not trying to make anyone feel bad about oneself, mind you, but if the same thing (being cheated) happens over and over again in relationships, the common denominator in all of these is you. Some thoughts for you:
-- Are you too controlling? If you are demanding to know who is on the other end of every phone call or demanding for her to account for every second of the day, then you are basically putting him:her in a cage. Both men and Women despise that and will step out just to assert themselves.
-- Or are you not demanding enough? While a relationship isn't a quid pro quo kind of thing, it has to be a two-way street. Once you two commit to an exclusive relationship, there needs to be that kind of discussion about what that means, and what you wouldn't put up with. That doesn't mean having a set of rules. That doesn't mean you have to be an a-hole about matters. But if he / she does something that you think is out of bounds, say as much.
-- Or are you not keeping him / her interested? Once you are comfortable in a relationship, all the fun and interesting things you did in when the relationship was new fall by the wayside in favor of ESPN or hanging out with the buddies at the bar. At least once every couple of weeks, for as long as the relationship lasts, you should proactively do something that's centered around him / her. Then again, how many times has she sat through on TV? And even if he / she likes to watch the show, it doesn't mean she likes to watch it all the time.
-- Or are you not having conversations with him / her? By that, I don't mean it has to be this deep mutual sharing of thoughts all the damned time. It just needs to be the steady patter about the business of living with the occasional discussion of future plans. Let him / her know that the relationship is going somewhere, anywhere. And, here's the big thing: LISTEN. If someone is not happy, he / she won't tell you outright until it's almost too late. Learn to listen to the sentiment behind the words, not just the words themselves.
-- The Sex Thing. Yeah, that whole thing about strewing rose petals on the bed is just stupid. Don't be the one who does that. At the same time, the point behind it is that sex can get stale and routine, too. Make it about him / her every once in a while. Actually, more than once in a while.
Truth is, that's where a lot of the hard work begins.
I look forward for you to follow, upvote and resteem >>
Come and join me and follow me in the curation trail for @dynamicsteemians . Special thanks to @thundercurator and @dynamicgreentk and the dynamicsteemians community in discord