Long-distance relationships can be wonderful,but they can also be difficult. When it comes to long-distance love, it isn't always built to last.All in all, the best way to determine where your long-distance relationship stands is by having an honest conversation with your partner. But, there are some subtle signs that could help you to determine if you have a strong long-distance relationship..Here are 10 signs that your long-distance relationship might not be working.They make excuses to not communicate.Healthy relationships usually consist of a lot of communication. According to Elena Murzello, dating and relationship expert and author of "The Love List: A guide to getting who you want," if your "communicate no matter what" philosophy has vanished, your relationship may be in trouble. "If your partner has too many reasons why they can't communicate, this should be a red flag," Murzello told INSIDER. "This could include running errands, catching up on a sitcom, picking up extra shifts at work; basically finding a reason to keep from making contact with you."Your relationship feels different.Whether you've been dating for two months or two years, you've likely picked up on some of your partner's characteristics and personality traits. These also includehow they typically treat you and act toward you. So, if things aren't feeling the same, this could be a red flag, Murzello told INSIDER."When communication has become few and far between, this should be a concern," she said. "If you feel like they are pulling away, trust your gut. They usually are."They're never available.Depending on your relationship, you may be used to talking to your partner 24/7. If chat time with your partner has rapidly ceased or even decreased, there's a chance your relationship might have some problems."If you're calling him or her and they never answer or always call you back later, this is a telltale sign that your relationship has a few issues," Gayle Johns-Carter, professional life coach and founder of Coaching Your Life's Goals, told INSIDER. According to Johns-Carter,this is understandable if it happens from time to time, butit shouldn't be a constant issue.Read More:5 signs your partner might be cheating in your long-distance relationshipSee the rest of the story at Business Insider Click here to read full news..