Can't really tell without an accurate chart. What I'm doing here is trying a workaround by using your Moons as ASC. And from that perspective, his Venus and Sun are in your 5th (romance) and his Moon in your 11th (friends). Now, not sure if his Moon could still change signs that day. If he's a Sagittarius Moon, then your Moon is in his 3rd (siblings), your Venus in his 4th (home) and your Sun in his 5th (romance). So romance would be a main topic of this relationship for both of you. If he's a Capricorn Moon then your Moon is in his 2nd, your Venus in his 3rd and your Sun in his 4th. Usually, when the 4th house is triggered, that's ideal for a long term relationship, it usually gives you the feeling of coming home or wanting to settle down. So looking at the charts from the Moon it looks okay. But I'd rather have a look at the charts from the ASC.