Generally speaking men do not invest time and money on women they aren't at least physically attracted to.
You said: "We have been (dating) for 3 months."
If guy is not always trying to "jump your bones" and enjoys having debates, watching TV, having conversations, kissing, and going on dates then there is a very good chance he (likes) you!
Maybe what you call "confusion" is just that he's "different" from the type of guys you normally date. Unless there has been talk of you being in an "exclusive relationship" I would not make any assumptions.
You could tell him that you feel yourself emotionally getting close to him but have no real idea of what (his intentions) are. Afterwards listen to his reply. Men are not indecisive when they want a woman all to themselves.
Lastly I have to mention this as a side note. A female friend of mine several years ago met a man who was kind, loving, and affectionate but was religious and clearly pre-marital sex was out of the question.
They got married and she learned he was impotent. He had cancer a few years prior and his first wife had left him. My friend knew he had cancer before but she had no idea he was impotent. She faithfully honored her vows and stayed with him.
His cancer returned and he died. They had a 5 year "sexless marriage".
Sometimes an older man may have a sexual dysfunction or a very low libido which causes him to have less or no interest in sex. One can't also rule out the possibility of having a non-curable STD and not wanting to risk passing it on.
In this day and age if you've been dating someone for 3 months without sex that's very rare! Hopefully he's healthy, "into you", not married or seeing other women, and just believes in slowly getting to know someone.