Love sure is a beautiful thing. For every couple, it weaves a different story in a unique and enchanting way. Love is that emotion that makes you put others above yourself, makes you go out of your way to please someone else, makes you prioritize that one person over other people, events, and places. Love makes you set aside pride and instills selflessness. It gives you the urge to own and protect.
When your significant other shows no sign of these, it's very likely that he's with you for something other than love. How would you know?

Pay attention to what you discuss about

Out of the abundance of the heart, the mouth speaks. So, what does he talk about? Is it all about his business plan that you have been funding or about sex all the time? Does he ever initiate conversations about what you share and how he appreciates your presence in his life? Does he talk about where your relationship is headed? The answers to these questions will give you an idea as to why he's with you.

Refusal to name what you both share

Is your relationship undefined? Are you dating or courting? Is it with a view to marriage or are you just friends with benefits? When a man keeps you hanging for months with no definition for what you share even when you bring it up, it shows that he's not serious about you and definitely not in love with you.

Remembers you only in his times of need

A man who comes to you only when he's emotionally down or horny or financially sapped makes it obvious why he's with you. He's only there for what he can get from you. He has nothing to give of his heart even if he gives material things to make up for the comforts you provide. You only need to notice a pattern to know for sure.

Doesn't introduce you to those important to him

If you have been in a relationship with a man for a very long time and he shows no sign of bringing you to meet his parents, siblings, or friends, then something is wrong. A man who loves you will want to show you off to those who matter to him even if he isn't ready to show you off to the whole world just yet. If you bring it up and he always finds a reason to brush it aside, you really need to wake up to the reality of what your relationship is or is not.

Would never go out of his way for you

When a man loves, even when he has a tight schedule, he'll make out time for you. He'll go out of his way to be at that occasion that he doesn't really care about but knows that you care loads about. He will go the extra mile to please you even if it's something as simple and awkward as getting sanitary pads in an emergency. If he can't go out of his way and only does things at his convenience, he probably doesn't love you the way love is.

You are not in his scale of preference

If he makes exceptions for friends and acquaintances but not for you, that's a sign to show your place in his heart. He obviously doesn't prioritize you. If he treats mere acquaintances better than he treats you, that says a lot and you don't want to turn a blind eye to that. Don't stay with someone to whom you're not important.
If he's exhibiting more than one of these signs, it's time to sit down and define your place in his life, who you are to him so as to know if you should stay or sail