Helpful Advice?...

I’ve been talking to this guy for a year now.. his last ex he was with for 5 years.. recently I found out he’s been visiting her parents house. Idk if she’s there or not I’m pretty sure she is tho. Idk if I’m overreacting or not, but should I do myself a favor & go ghost?! (Hence he just introduced me to someone in his family & has gotten me expensive gifts plus he gets jealous when I even give another guy a conversation...)