I don't want sound harsh, but love outside of marriage isn't permitted. And when two people are engaged, they still shouldn't really have feelings for each other because the marriage contract hasn't actually took place, which mean's that the two people are still strangers to each other. So you should still have a mahram whenever you discuss anything, and you should be asking each other serios questions, not jokingly etc.
If i was you, just keep praying to Allaah Almighty, and put your trust in Him. Stay patient like you have already mentioned, and remember that dua' is a really strong weapon of the believer.
"Is it possible to love someone too much, but it doesnt interfere with Islam?"
A person might love someone so much that they start disobeying Allaah Almighty. This might sound odd, but something such as talking to someone to an extreme where a person might miss their obligatory duties such as salaah etc.
Or it might even be something such as haraam actions between two people because their not actually married, but they 'love' each other - so they fall into much worser sins.
"To need to talk with the one you love at least every day?"
You might feel that's true, and when you first fall in love with a person - it's natural to feel that way. But if the couple spend too much time with each other, gradually that excitement dies out, then it might turn to repetition and finally lead to boredom. So the best thing to do is to be patient, keep your trust in Allaah, and remember that famous saying "absence makes the heart go fonder."
So stay patient, and you two can enjoy each other's full company once you're married insha'Allaah.
You'd rather have a blessed [marriage] beginning with no haraam, instead of a sinful beginning with no barakah/blessing.
Allaah Almighty know's best
, and insha'Allaah we'll keep you in our prayers.