What a strange thread!!
No matter how naive the OP may be ,He has been Honest
he said he has been dating for a few months and is reaching the point where he is questioning the mutual compatability of the relationship and is explaining that HE has a need /wish /requirement for more sex than his girlfriend .
Nothing to do with him being unemployed or her having three jobs although tiredness may be a contributory factor, nor can I see the connection between her helping him financialy and his feelings about the relationship over all.
His reluctance to LDRs, for him, may be very wise and I wish him and everyone else here happiness in what ever form is right for you and your loved one