At this early stage, a date that is serious about you should be interested in getting to know you as a person, and learning more about your background, beliefs, interests, hobbies, dreams, etc.
That being said, this doesn’t mean that he doesn’t want to engage in conversation that is flirty and sexual.
Guys are into flirty and sexual conversation as part of their love language.
When a conversation gets flirty and sexual, it sends the message to him that the girl is physically into him, and that is important to him.
Knowing this gives him extra impetus to keep taking the girl out on dates and paying for them.
There is nothing wrong with a guy wanting and enjoying conversation that gets flirty and sexual.
Where it becomes a problem is when that is all he cares about.
This being said, don’t be so fast to judge him as someone that is only into conversation when it gets flirty and sexual, without taking your behavior thus far into account.
When a guy is courting a girl, he wants constant reassurance that the girl is physically into him.
Being that he is the one who is taking the lion’s share of the risk in asking her out and paying for the dates, he wants reassurance that she is physically attracted to him.
When a girl hasn’t been forthcoming in demonstrating that she is physically into a guy, or has been somewhat standoffish, he is compelled to determine whether she is.
This is where he is holding her hand, leaning in for a kiss, or giving her the occasional romantic gift on a date.
This is behavior he exhibits to elicit a romantic response out of her, in an attempt to determine whether she is into him.
When the girl isn’t responsive to these attempts, it worries him, giving him the impression that the girl isn’t physically attracted to him.
Remember, men require signs from a girl that exemplify physical attraction.
Although he loves talking to her on substantive topics, he wants to know that she is physically attracted to him.
Ask yourself whether you have shown sufficient signs that you are physically attracted to him, besides the substantive conversations you have had with him in the past.
If you haven’t, think twice about ending the courtship based on how he seems to only be into a conversation when it’s flirty and sexual.
A guy thinks that you aren’t all that into him when you don’t show it in your body language.
He gets the impression that you like him as a platonic friend and not a romantic interest.
Being that he is the one who is asking you out and taking you out on dates that he is paying for, he doesn’t want to risk doing all this for the sake of ending up in a friendship.
To him, a woman that is romantically interested in him is physically attracted to him and exhibits that in her body language.
Before thinking about ending this, consider whether you have been responsive to the romantic advances that he has made.
Sometimes, a guy who seems to be only into conversation whenever it becomes flirty and sexual is doing so out of a dearth of sexual reassurance from you.
He is grasping at anything that gives him the impression that you are physically attracted to him.
Consider this before ending this courtship with him.
He isn’t asking you out on dates and paying for them to be your friend.
He wants reassurance that you are physically attracted to him.
None of this has any weight if he has never demonstrated an interest to talk about substantive topics with you.
If he has only ever been into having flirty and sexual conversation with you from the onset, he has never cared about pursuing a serious relationship with you.