Strange, by traditional western horary, the chart doesn't quite indicate marriage this year.
You are Jupiter, strong and angular. The future partner is Mercury, debilitated in Pisces, square ASC. No aspect between them, no collection no nothing.
Moon is cadent and peregrine, aspecting well dignified Sun, so that's good. Sun rules 8th house, hmm looks like this girl has lots of money? Is that so...? Or maybe Sun is something else... (Sun also rules you as the male).
The part of marriage is at 22.48 Aries right on 4th, I see it as this being in control of the family. Jupiter, you are in fall of Mars. This shows either you don't really want to be married or its your family that you feel somewhat
negative about... Mars, the family is retrograde right on MC, showing change of mind, frustration, anger...( it can specifically to do with your mum or the girl's family) as Mars is in 10th. 10th rules your mother, or the girls family. Moon is moving towards Mars (after Sun aspect).
There is some reception between you and the girl's significator showing perhaps mutual liking.
But I wonder if due to that Moon/Mars aspect things will stall, and some obstacles to go through. Some disagreements perhaps and this may delay the wedding itself.
I hope I'm wrong. Either way, please update on your situation.
best wishes!
edit: since april has there been any frustration difficulties since you asked the question? I wonder if that's what Mars is about... this is a 3 month old chart, so perhaps what is shown in the chart has already happened?